398192520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:356

約数の個数: 256

約数和(自身を含む): 1386823680

約数和(自身を除く): 988631160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 31, 33, 37, 40, 44, 55, 60, 62, 66, 74, 88, 93, 110, 111, 120, 124, 132, 148, 155, 165, 185, 186, 220, 222, 248, 263, 264, 296, 310, 330, 341, 370, 372, 407, 440, 444, 465, 526, 555, 620, 660, 682, 740, 744, 789, 814, 888, 930, 1023, 1052, 1110, 1147, 1221, 1240, 1315, 1320, 1364, 1480, 1578, 1628, 1705, 1860, 2035, 2046, 2104, 2220, 2294, 2442, 2630, 2728, 2893, 3156, 3256, 3410, 3441, 3720, 3945, 4070, 4092, 4440, 4588, 4884, 5115, 5260, 5735, 5786, 6105, 6312, 6820, 6882, 7890, 8140, 8153, 8184, 8679, 9176, 9731, 9768, 10230, 10520, 11470, 11572, 12210, 12617, 13640, 13764, 14465, 15780, 16280, 16306, 17205, 17358, 19462, 20460, 22940, 23144, 24420, 24459, 25234, 27528, 28930, 29193, 31560, 32612, 34410, 34716, 37851, 38924, 40765, 40920, 43395, 45880, 48655, 48840, 48918, 50468, 57860, 58386, 63085, 65224, 68820, 69432, 75702, 77848, 81530, 86790, 89683, 97310, 97836, 100936, 107041, 115720, 116772, 122295, 126170, 137640, 145965, 151404, 163060, 173580, 179366, 189255, 194620, 195672, 214082, 233544, 244590, 252340, 269049, 291930, 301661, 302808, 321123, 326120, 347160, 358732, 378510, 389240, 428164, 448415, 489180, 504680, 535205, 538098, 583860, 603322, 642246, 717464, 757020, 856328, 896830, 904983, 978360, 1070410, 1076196, 1167720, 1206644, 1284492, 1345245, 1508305, 1514040, 1605615, 1793660, 1809966, 2140820, 2152392, 2413288, 2568984, 2690490, 3016610, 3211230, 3318271, 3587320, 3619932, 4281640, 4524915, 5380980, 6033220, 6422460, 6636542, 7239864, 9049830, 9954813, 10761960, 12066440, 12844920, 13273084, 16591355, 18099660, 19909626, 26546168, 33182710, 36199320, 39819252, 49774065, 66365420, 79638504, 99548130, 132730840, 199096260, 398192520]

約数ペア:

[(1, 398192520), (2, 199096260), (3, 132730840), (4, 99548130), (5, 79638504), (6, 66365420), (8, 49774065), (10, 39819252), (11, 36199320), (12, 33182710), (15, 26546168), (20, 19909626), (22, 18099660), (24, 16591355), (30, 13273084), (31, 12844920), (33, 12066440), (37, 10761960), (40, 9954813), (44, 9049830), (55, 7239864), (60, 6636542), (62, 6422460), (66, 6033220), (74, 5380980), (88, 4524915), (93, 4281640), (110, 3619932), (111, 3587320), (120, 3318271), (124, 3211230), (132, 3016610), (148, 2690490), (155, 2568984), (165, 2413288), (185, 2152392), (186, 2140820), (220, 1809966), (222, 1793660), (248, 1605615), (263, 1514040), (264, 1508305), (296, 1345245), (310, 1284492), (330, 1206644), (341, 1167720), (370, 1076196), (372, 1070410), (407, 978360), (440, 904983), (444, 896830), (465, 856328), (526, 757020), (555, 717464), (620, 642246), (660, 603322), (682, 583860), (740, 538098), (744, 535205), (789, 504680), (814, 489180), (888, 448415), (930, 428164), (1023, 389240), (1052, 378510), (1110, 358732), (1147, 347160), (1221, 326120), (1240, 321123), (1315, 302808), (1320, 301661), (1364, 291930), (1480, 269049), (1578, 252340), (1628, 244590), (1705, 233544), (1860, 214082), (2035, 195672), (2046, 194620), (2104, 189255), (2220, 179366), (2294, 173580), (2442, 163060), (2630, 151404), (2728, 145965), (2893, 137640), (3156, 126170), (3256, 122295), (3410, 116772), (3441, 115720), (3720, 107041), (3945, 100936), (4070, 97836), (4092, 97310), (4440, 89683), (4588, 86790), (4884, 81530), (5115, 77848), (5260, 75702), (5735, 69432), (5786, 68820), (6105, 65224), (6312, 63085), (6820, 58386), (6882, 57860), (7890, 50468), (8140, 48918), (8153, 48840), (8184, 48655), (8679, 45880), (9176, 43395), (9731, 40920), (9768, 40765), (10230, 38924), (10520, 37851), (11470, 34716), (11572, 34410), (12210, 32612), (12617, 31560), (13640, 29193), (13764, 28930), (14465, 27528), (15780, 25234), (16280, 24459), (16306, 24420), (17205, 23144), (17358, 22940), (19462, 20460)]