27980680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7687}}^1$

素因数の和:7718

約数の個数: 64

約数和(自身を含む): 77495040

約数和(自身を除く): 49514360

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 7687, 15374, 30748, 38435, 53809, 61496, 76870, 99931, 107618, 153740, 199862, 215236, 269045, 307480, 399724, 430472, 499655, 538090, 699517, 799448, 999310, 1076180, 1399034, 1998620, 2152360, 2798068, 3497585, 3997240, 5596136, 6995170, 13990340, 27980680]

約数ペア:

[(1, 27980680), (2, 13990340), (4, 6995170), (5, 5596136), (7, 3997240), (8, 3497585), (10, 2798068), (13, 2152360), (14, 1998620), (20, 1399034), (26, 1076180), (28, 999310), (35, 799448), (40, 699517), (52, 538090), (56, 499655), (65, 430472), (70, 399724), (91, 307480), (104, 269045), (130, 215236), (140, 199862), (182, 153740), (260, 107618), (280, 99931), (364, 76870), (455, 61496), (520, 53809), (728, 38435), (910, 30748), (1820, 15374), (3640, 7687)]