28007540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2087}}^1$

素因数の和:2168

約数の個数: 48

約数和(自身を含む): 65245824

約数和(自身を除く): 37238284

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1342, 2087, 2684, 3355, 4174, 6710, 8348, 10435, 13420, 20870, 22957, 41740, 45914, 91828, 114785, 127307, 229570, 254614, 459140, 509228, 636535, 1273070, 1400377, 2546140, 2800754, 5601508, 7001885, 14003770, 28007540]

約数ペア:

[(1, 28007540), (2, 14003770), (4, 7001885), (5, 5601508), (10, 2800754), (11, 2546140), (20, 1400377), (22, 1273070), (44, 636535), (55, 509228), (61, 459140), (110, 254614), (122, 229570), (220, 127307), (244, 114785), (305, 91828), (610, 45914), (671, 41740), (1220, 22957), (1342, 20870), (2087, 13420), (2684, 10435), (3355, 8348), (4174, 6710)]