68992980

素因数分解:

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

素因数の和:814

約数の個数: 144

約数和(自身を含む): 232275456

約数和(自身を除く): 163282476

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 49, 60, 62, 70, 84, 93, 98, 105, 124, 140, 147, 155, 186, 196, 210, 217, 245, 294, 310, 372, 420, 434, 465, 490, 588, 620, 651, 735, 757, 868, 930, 980, 1085, 1302, 1470, 1514, 1519, 1860, 2170, 2271, 2604, 2940, 3028, 3038, 3255, 3785, 4340, 4542, 4557, 5299, 6076, 6510, 7570, 7595, 9084, 9114, 10598, 11355, 13020, 15140, 15190, 15897, 18228, 21196, 22710, 22785, 23467, 26495, 30380, 31794, 37093, 45420, 45570, 46934, 52990, 63588, 70401, 74186, 79485, 91140, 93868, 105980, 111279, 117335, 140802, 148372, 158970, 164269, 185465, 222558, 234670, 281604, 317940, 328538, 352005, 370930, 445116, 469340, 492807, 556395, 657076, 704010, 741860, 821345, 985614, 1112790, 1149883, 1408020, 1642690, 1971228, 2225580, 2299766, 2464035, 3285380, 3449649, 4599532, 4928070, 5749415, 6899298, 9856140, 11498830, 13798596, 17248245, 22997660, 34496490, 68992980]

約数ペア:

[(1, 68992980), (2, 34496490), (3, 22997660), (4, 17248245), (5, 13798596), (6, 11498830), (7, 9856140), (10, 6899298), (12, 5749415), (14, 4928070), (15, 4599532), (20, 3449649), (21, 3285380), (28, 2464035), (30, 2299766), (31, 2225580), (35, 1971228), (42, 1642690), (49, 1408020), (60, 1149883), (62, 1112790), (70, 985614), (84, 821345), (93, 741860), (98, 704010), (105, 657076), (124, 556395), (140, 492807), (147, 469340), (155, 445116), (186, 370930), (196, 352005), (210, 328538), (217, 317940), (245, 281604), (294, 234670), (310, 222558), (372, 185465), (420, 164269), (434, 158970), (465, 148372), (490, 140802), (588, 117335), (620, 111279), (651, 105980), (735, 93868), (757, 91140), (868, 79485), (930, 74186), (980, 70401), (1085, 63588), (1302, 52990), (1470, 46934), (1514, 45570), (1519, 45420), (1860, 37093), (2170, 31794), (2271, 30380), (2604, 26495), (2940, 23467), (3028, 22785), (3038, 22710), (3255, 21196), (3785, 18228), (4340, 15897), (4542, 15190), (4557, 15140), (5299, 13020), (6076, 11355), (6510, 10598), (7570, 9114), (7595, 9084)]