266609920

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6719}}^1$

素因数の和:6771

約数の個数: 72

約数和(自身を含む): 659312640

約数和(自身を除く): 392702720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 6719, 7936, 9920, 13438, 19840, 26876, 33595, 39680, 53752, 67190, 107504, 134380, 208289, 215008, 268760, 416578, 430016, 537520, 833156, 860032, 1041445, 1075040, 1666312, 1720064, 2082890, 2150080, 3332624, 4165780, 4300160, 6665248, 8331560, 8600320, 13330496, 16663120, 26660992, 33326240, 53321984, 66652480, 133304960, 266609920]

約数ペア:

[(1, 266609920), (2, 133304960), (4, 66652480), (5, 53321984), (8, 33326240), (10, 26660992), (16, 16663120), (20, 13330496), (31, 8600320), (32, 8331560), (40, 6665248), (62, 4300160), (64, 4165780), (80, 3332624), (124, 2150080), (128, 2082890), (155, 1720064), (160, 1666312), (248, 1075040), (256, 1041445), (310, 860032), (320, 833156), (496, 537520), (620, 430016), (640, 416578), (992, 268760), (1240, 215008), (1280, 208289), (1984, 134380), (2480, 107504), (3968, 67190), (4960, 53752), (6719, 39680), (7936, 33595), (9920, 26876), (13438, 19840)]