20086848440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1621}}^1\times {\mathrm{18223}}^1$

素因数の和:19872

約数の個数: 64

約数和(自身を含む): 47886111360

約数和(自身を除く): 27799262920

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 1621, 3242, 6484, 8105, 12968, 16210, 18223, 27557, 32420, 36446, 55114, 64840, 72892, 91115, 110228, 137785, 145784, 182230, 220456, 275570, 309791, 364460, 551140, 619582, 728920, 1102280, 1239164, 1548955, 2478328, 3097910, 6195820, 12391640, 29539483, 59078966, 118157932, 147697415, 236315864, 295394830, 502171211, 590789660, 1004342422, 1181579320, 2008684844, 2510856055, 4017369688, 5021712110, 10043424220, 20086848440]

約数ペア:

[(1, 20086848440), (2, 10043424220), (4, 5021712110), (5, 4017369688), (8, 2510856055), (10, 2008684844), (17, 1181579320), (20, 1004342422), (34, 590789660), (40, 502171211), (68, 295394830), (85, 236315864), (136, 147697415), (170, 118157932), (340, 59078966), (680, 29539483), (1621, 12391640), (3242, 6195820), (6484, 3097910), (8105, 2478328), (12968, 1548955), (16210, 1239164), (18223, 1102280), (27557, 728920), (32420, 619582), (36446, 551140), (55114, 364460), (64840, 309791), (72892, 275570), (91115, 220456), (110228, 182230), (137785, 145784)]