128427990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1\times {\mathrm{541}}^1$

素因数の和:785

約数の個数: 64

約数和(自身を含む): 317967552

約数和(自身を除く): 189539562

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 123, 193, 205, 246, 386, 410, 541, 579, 615, 965, 1082, 1158, 1230, 1623, 1930, 2705, 2895, 3246, 5410, 5790, 7913, 8115, 15826, 16230, 22181, 23739, 39565, 44362, 47478, 66543, 79130, 104413, 110905, 118695, 133086, 208826, 221810, 237390, 313239, 332715, 522065, 626478, 665430, 1044130, 1566195, 3132390, 4280933, 8561866, 12842799, 21404665, 25685598, 42809330, 64213995, 128427990]

約数ペア:

[(1, 128427990), (2, 64213995), (3, 42809330), (5, 25685598), (6, 21404665), (10, 12842799), (15, 8561866), (30, 4280933), (41, 3132390), (82, 1566195), (123, 1044130), (193, 665430), (205, 626478), (246, 522065), (386, 332715), (410, 313239), (541, 237390), (579, 221810), (615, 208826), (965, 133086), (1082, 118695), (1158, 110905), (1230, 104413), (1623, 79130), (1930, 66543), (2705, 47478), (2895, 44362), (3246, 39565), (5410, 23739), (5790, 22181), (7913, 16230), (8115, 15826)]