28517840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1613}}^1$

素因数の和:1656

約数の個数: 80

約数和(自身を含む): 75651408

約数和(自身を除く): 47133568

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1613, 1768, 2210, 3226, 3536, 4420, 6452, 8065, 8840, 12904, 16130, 17680, 20969, 25808, 27421, 32260, 41938, 54842, 64520, 83876, 104845, 109684, 129040, 137105, 167752, 209690, 219368, 274210, 335504, 356473, 419380, 438736, 548420, 712946, 838760, 1096840, 1425892, 1677520, 1782365, 2193680, 2851784, 3564730, 5703568, 7129460, 14258920, 28517840]

約数ペア:

[(1, 28517840), (2, 14258920), (4, 7129460), (5, 5703568), (8, 3564730), (10, 2851784), (13, 2193680), (16, 1782365), (17, 1677520), (20, 1425892), (26, 1096840), (34, 838760), (40, 712946), (52, 548420), (65, 438736), (68, 419380), (80, 356473), (85, 335504), (104, 274210), (130, 219368), (136, 209690), (170, 167752), (208, 137105), (221, 129040), (260, 109684), (272, 104845), (340, 83876), (442, 64520), (520, 54842), (680, 41938), (884, 32260), (1040, 27421), (1105, 25808), (1360, 20969), (1613, 17680), (1768, 16130), (2210, 12904), (3226, 8840), (3536, 8065), (4420, 6452)]