261372780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1511}}^1$

素因数の和:1588

約数の個数: 108

約数和(自身を含む): 819773136

約数和(自身を除く): 558400356

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 961, 1116, 1395, 1511, 1860, 1922, 2790, 2883, 3022, 3844, 4533, 4805, 5580, 5766, 6044, 7555, 8649, 9066, 9610, 11532, 13599, 14415, 15110, 17298, 18132, 19220, 22665, 27198, 28830, 30220, 34596, 43245, 45330, 46841, 54396, 57660, 67995, 86490, 90660, 93682, 135990, 140523, 172980, 187364, 234205, 271980, 281046, 421569, 468410, 562092, 702615, 843138, 936820, 1405230, 1452071, 1686276, 2107845, 2810460, 2904142, 4215690, 4356213, 5808284, 7260355, 8431380, 8712426, 13068639, 14520710, 17424852, 21781065, 26137278, 29041420, 43562130, 52274556, 65343195, 87124260, 130686390, 261372780]

約数ペア:

[(1, 261372780), (2, 130686390), (3, 87124260), (4, 65343195), (5, 52274556), (6, 43562130), (9, 29041420), (10, 26137278), (12, 21781065), (15, 17424852), (18, 14520710), (20, 13068639), (30, 8712426), (31, 8431380), (36, 7260355), (45, 5808284), (60, 4356213), (62, 4215690), (90, 2904142), (93, 2810460), (124, 2107845), (155, 1686276), (180, 1452071), (186, 1405230), (279, 936820), (310, 843138), (372, 702615), (465, 562092), (558, 468410), (620, 421569), (930, 281046), (961, 271980), (1116, 234205), (1395, 187364), (1511, 172980), (1860, 140523), (1922, 135990), (2790, 93682), (2883, 90660), (3022, 86490), (3844, 67995), (4533, 57660), (4805, 54396), (5580, 46841), (5766, 45330), (6044, 43245), (7555, 34596), (8649, 30220), (9066, 28830), (9610, 27198), (11532, 22665), (13599, 19220), (14415, 18132), (15110, 17298)]