691356420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{6521}}^1$

素因数の和:6586

約数の個数: 144

約数和(自身を含む): 2279047680

約数和(自身を除く): 1587691260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 31, 36, 38, 45, 57, 60, 62, 76, 90, 93, 95, 114, 124, 155, 171, 180, 186, 190, 228, 279, 285, 310, 342, 372, 380, 465, 558, 570, 589, 620, 684, 855, 930, 1116, 1140, 1178, 1395, 1710, 1767, 1860, 2356, 2790, 2945, 3420, 3534, 5301, 5580, 5890, 6521, 7068, 8835, 10602, 11780, 13042, 17670, 19563, 21204, 26084, 26505, 32605, 35340, 39126, 53010, 58689, 65210, 78252, 97815, 106020, 117378, 123899, 130420, 195630, 202151, 234756, 247798, 293445, 371697, 391260, 404302, 495596, 586890, 606453, 619495, 743394, 808604, 1010755, 1115091, 1173780, 1212906, 1238990, 1486788, 1819359, 1858485, 2021510, 2230182, 2425812, 2477980, 3032265, 3638718, 3716970, 3840869, 4043020, 4460364, 5575455, 6064530, 7277436, 7433940, 7681738, 9096795, 11150910, 11522607, 12129060, 15363476, 18193590, 19204345, 22301820, 23045214, 34567821, 36387180, 38408690, 46090428, 57613035, 69135642, 76817380, 115226070, 138271284, 172839105, 230452140, 345678210, 691356420]

約数ペア:

[(1, 691356420), (2, 345678210), (3, 230452140), (4, 172839105), (5, 138271284), (6, 115226070), (9, 76817380), (10, 69135642), (12, 57613035), (15, 46090428), (18, 38408690), (19, 36387180), (20, 34567821), (30, 23045214), (31, 22301820), (36, 19204345), (38, 18193590), (45, 15363476), (57, 12129060), (60, 11522607), (62, 11150910), (76, 9096795), (90, 7681738), (93, 7433940), (95, 7277436), (114, 6064530), (124, 5575455), (155, 4460364), (171, 4043020), (180, 3840869), (186, 3716970), (190, 3638718), (228, 3032265), (279, 2477980), (285, 2425812), (310, 2230182), (342, 2021510), (372, 1858485), (380, 1819359), (465, 1486788), (558, 1238990), (570, 1212906), (589, 1173780), (620, 1115091), (684, 1010755), (855, 808604), (930, 743394), (1116, 619495), (1140, 606453), (1178, 586890), (1395, 495596), (1710, 404302), (1767, 391260), (1860, 371697), (2356, 293445), (2790, 247798), (2945, 234756), (3420, 202151), (3534, 195630), (5301, 130420), (5580, 123899), (5890, 117378), (6521, 106020), (7068, 97815), (8835, 78252), (10602, 65210), (11780, 58689), (13042, 53010), (17670, 39126), (19563, 35340), (21204, 32605), (26084, 26505)]