278613680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1\times {\mathrm{587}}^1$

素因数の和:966

約数の個数: 80

約数和(自身を含む): 689018400

約数和(自身を除く): 410404720

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 349, 587, 680, 698, 1174, 1360, 1396, 1745, 2348, 2792, 2935, 3490, 4696, 5584, 5870, 5933, 6980, 9392, 9979, 11740, 11866, 13960, 19958, 23480, 23732, 27920, 29665, 39916, 46960, 47464, 49895, 59330, 79832, 94928, 99790, 118660, 159664, 199580, 204863, 237320, 399160, 409726, 474640, 798320, 819452, 1024315, 1638904, 2048630, 3277808, 3482671, 4097260, 6965342, 8194520, 13930684, 16389040, 17413355, 27861368, 34826710, 55722736, 69653420, 139306840, 278613680]

約数ペア:

[(1, 278613680), (2, 139306840), (4, 69653420), (5, 55722736), (8, 34826710), (10, 27861368), (16, 17413355), (17, 16389040), (20, 13930684), (34, 8194520), (40, 6965342), (68, 4097260), (80, 3482671), (85, 3277808), (136, 2048630), (170, 1638904), (272, 1024315), (340, 819452), (349, 798320), (587, 474640), (680, 409726), (698, 399160), (1174, 237320), (1360, 204863), (1396, 199580), (1745, 159664), (2348, 118660), (2792, 99790), (2935, 94928), (3490, 79832), (4696, 59330), (5584, 49895), (5870, 47464), (5933, 46960), (6980, 39916), (9392, 29665), (9979, 27920), (11740, 23732), (11866, 23480), (13960, 19958)]