20272890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2671}}^1$

素因数の和:2715

約数の個数: 64

約数和(自身を含む): 55406592

約数和(自身を除く): 35133702

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 23, 30, 33, 46, 55, 66, 69, 110, 115, 138, 165, 230, 253, 330, 345, 506, 690, 759, 1265, 1518, 2530, 2671, 3795, 5342, 7590, 8013, 13355, 16026, 26710, 29381, 40065, 58762, 61433, 80130, 88143, 122866, 146905, 176286, 184299, 293810, 307165, 368598, 440715, 614330, 675763, 881430, 921495, 1351526, 1842990, 2027289, 3378815, 4054578, 6757630, 10136445, 20272890]

約数ペア:

[(1, 20272890), (2, 10136445), (3, 6757630), (5, 4054578), (6, 3378815), (10, 2027289), (11, 1842990), (15, 1351526), (22, 921495), (23, 881430), (30, 675763), (33, 614330), (46, 440715), (55, 368598), (66, 307165), (69, 293810), (110, 184299), (115, 176286), (138, 146905), (165, 122866), (230, 88143), (253, 80130), (330, 61433), (345, 58762), (506, 40065), (690, 29381), (759, 26710), (1265, 16026), (1518, 13355), (2530, 8013), (2671, 7590), (3795, 5342)]