20002998

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:181

約数の個数: 64

約数和(自身を含む): 43997184

約数和(自身を除く): 23994186

約数列:

[1, 2, 3, 6, 31, 41, 43, 61, 62, 82, 86, 93, 122, 123, 129, 183, 186, 246, 258, 366, 1271, 1333, 1763, 1891, 2501, 2542, 2623, 2666, 3526, 3782, 3813, 3999, 5002, 5246, 5289, 5673, 7503, 7626, 7869, 7998, 10578, 11346, 15006, 15738, 54653, 77531, 81313, 107543, 109306, 155062, 162626, 163959, 215086, 232593, 243939, 322629, 327918, 465186, 487878, 645258, 3333833, 6667666, 10001499, 20002998]

約数ペア:

[(1, 20002998), (2, 10001499), (3, 6667666), (6, 3333833), (31, 645258), (41, 487878), (43, 465186), (61, 327918), (62, 322629), (82, 243939), (86, 232593), (93, 215086), (122, 163959), (123, 162626), (129, 155062), (183, 109306), (186, 107543), (246, 81313), (258, 77531), (366, 54653), (1271, 15738), (1333, 15006), (1763, 11346), (1891, 10578), (2501, 7998), (2542, 7869), (2623, 7626), (2666, 7503), (3526, 5673), (3782, 5289), (3813, 5246), (3999, 5002)]