2908164820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{27947}}^1$

素因数の和:28021

約数の個数: 72

約数和(自身を含む): 6869171232

約数和(自身を除く): 3961006412

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 121, 172, 215, 220, 242, 430, 473, 484, 605, 860, 946, 1210, 1892, 2365, 2420, 4730, 5203, 9460, 10406, 20812, 26015, 27947, 52030, 55894, 104060, 111788, 139735, 279470, 307417, 558940, 614834, 1201721, 1229668, 1537085, 2403442, 3074170, 3381587, 4806884, 6008605, 6148340, 6763174, 12017210, 13218931, 13526348, 16907935, 24034420, 26437862, 33815870, 52875724, 66094655, 67631740, 132189310, 145408241, 264378620, 290816482, 581632964, 727041205, 1454082410, 2908164820]

約数ペア:

[(1, 2908164820), (2, 1454082410), (4, 727041205), (5, 581632964), (10, 290816482), (11, 264378620), (20, 145408241), (22, 132189310), (43, 67631740), (44, 66094655), (55, 52875724), (86, 33815870), (110, 26437862), (121, 24034420), (172, 16907935), (215, 13526348), (220, 13218931), (242, 12017210), (430, 6763174), (473, 6148340), (484, 6008605), (605, 4806884), (860, 3381587), (946, 3074170), (1210, 2403442), (1892, 1537085), (2365, 1229668), (2420, 1201721), (4730, 614834), (5203, 558940), (9460, 307417), (10406, 279470), (20812, 139735), (26015, 111788), (27947, 104060), (52030, 55894)]