398339920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{26627}}^1$

素因数の和:26668

約数の個数: 80

約数和(自身を含む): 1069806528

約数和(自身を除く): 671466608

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1360, 1496, 1870, 2992, 3740, 7480, 14960, 26627, 53254, 106508, 133135, 213016, 266270, 292897, 426032, 452659, 532540, 585794, 905318, 1065080, 1171588, 1464485, 1810636, 2130160, 2263295, 2343176, 2928970, 3621272, 4526590, 4686352, 4979249, 5857940, 7242544, 9053180, 9958498, 11715880, 18106360, 19916996, 23431760, 24896245, 36212720, 39833992, 49792490, 79667984, 99584980, 199169960, 398339920]

約数ペア:

[(1, 398339920), (2, 199169960), (4, 99584980), (5, 79667984), (8, 49792490), (10, 39833992), (11, 36212720), (16, 24896245), (17, 23431760), (20, 19916996), (22, 18106360), (34, 11715880), (40, 9958498), (44, 9053180), (55, 7242544), (68, 5857940), (80, 4979249), (85, 4686352), (88, 4526590), (110, 3621272), (136, 2928970), (170, 2343176), (176, 2263295), (187, 2130160), (220, 1810636), (272, 1464485), (340, 1171588), (374, 1065080), (440, 905318), (680, 585794), (748, 532540), (880, 452659), (935, 426032), (1360, 292897), (1496, 266270), (1870, 213016), (2992, 133135), (3740, 106508), (7480, 53254), (14960, 26627)]