206978940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{757}}^1$

素因数の和:817

約数の個数: 216

約数和(自身を含む): 754895232

約数和(自身を除く): 547916292

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 49, 60, 62, 63, 70, 84, 90, 93, 98, 105, 124, 126, 140, 147, 155, 180, 186, 196, 210, 217, 245, 252, 279, 294, 310, 315, 372, 420, 434, 441, 465, 490, 558, 588, 620, 630, 651, 735, 757, 868, 882, 930, 980, 1085, 1116, 1260, 1302, 1395, 1470, 1514, 1519, 1764, 1860, 1953, 2170, 2205, 2271, 2604, 2790, 2940, 3028, 3038, 3255, 3785, 3906, 4340, 4410, 4542, 4557, 5299, 5580, 6076, 6510, 6813, 7570, 7595, 7812, 8820, 9084, 9114, 9765, 10598, 11355, 13020, 13626, 13671, 15140, 15190, 15897, 18228, 19530, 21196, 22710, 22785, 23467, 26495, 27252, 27342, 30380, 31794, 34065, 37093, 39060, 45420, 45570, 46934, 47691, 52990, 54684, 63588, 68130, 68355, 70401, 74186, 79485, 91140, 93868, 95382, 105980, 111279, 117335, 136260, 136710, 140802, 148372, 158970, 164269, 185465, 190764, 211203, 222558, 234670, 238455, 273420, 281604, 317940, 328538, 333837, 352005, 370930, 422406, 445116, 469340, 476910, 492807, 556395, 657076, 667674, 704010, 741860, 821345, 844812, 953820, 985614, 1056015, 1112790, 1149883, 1335348, 1408020, 1478421, 1642690, 1669185, 1971228, 2112030, 2225580, 2299766, 2464035, 2956842, 3285380, 3338370, 3449649, 4224060, 4599532, 4928070, 5749415, 5913684, 6676740, 6899298, 7392105, 9856140, 10348947, 11498830, 13798596, 14784210, 17248245, 20697894, 22997660, 29568420, 34496490, 41395788, 51744735, 68992980, 103489470, 206978940]

約数ペア:

[(1, 206978940), (2, 103489470), (3, 68992980), (4, 51744735), (5, 41395788), (6, 34496490), (7, 29568420), (9, 22997660), (10, 20697894), (12, 17248245), (14, 14784210), (15, 13798596), (18, 11498830), (20, 10348947), (21, 9856140), (28, 7392105), (30, 6899298), (31, 6676740), (35, 5913684), (36, 5749415), (42, 4928070), (45, 4599532), (49, 4224060), (60, 3449649), (62, 3338370), (63, 3285380), (70, 2956842), (84, 2464035), (90, 2299766), (93, 2225580), (98, 2112030), (105, 1971228), (124, 1669185), (126, 1642690), (140, 1478421), (147, 1408020), (155, 1335348), (180, 1149883), (186, 1112790), (196, 1056015), (210, 985614), (217, 953820), (245, 844812), (252, 821345), (279, 741860), (294, 704010), (310, 667674), (315, 657076), (372, 556395), (420, 492807), (434, 476910), (441, 469340), (465, 445116), (490, 422406), (558, 370930), (588, 352005), (620, 333837), (630, 328538), (651, 317940), (735, 281604), (757, 273420), (868, 238455), (882, 234670), (930, 222558), (980, 211203), (1085, 190764), (1116, 185465), (1260, 164269), (1302, 158970), (1395, 148372), (1470, 140802), (1514, 136710), (1519, 136260), (1764, 117335), (1860, 111279), (1953, 105980), (2170, 95382), (2205, 93868), (2271, 91140), (2604, 79485), (2790, 74186), (2940, 70401), (3028, 68355), (3038, 68130), (3255, 63588), (3785, 54684), (3906, 52990), (4340, 47691), (4410, 46934), (4542, 45570), (4557, 45420), (5299, 39060), (5580, 37093), (6076, 34065), (6510, 31794), (6813, 30380), (7570, 27342), (7595, 27252), (7812, 26495), (8820, 23467), (9084, 22785), (9114, 22710), (9765, 21196), (10598, 19530), (11355, 18228), (13020, 15897), (13626, 15190), (13671, 15140)]