398993654020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{4840981}}^1$

素因数の和:4841320

約数の個数: 48

約数和(自身を含む): 905186178288

約数和(自身を除く): 506192524268

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 317, 634, 1268, 1585, 3170, 4121, 6340, 8242, 16484, 20605, 41210, 82420, 4840981, 9681962, 19363924, 24204905, 48409810, 62932753, 96819620, 125865506, 251731012, 314663765, 629327530, 1258655060, 1534590977, 3069181954, 6138363908, 7672954885, 15345909770, 19949682701, 30691819540, 39899365402, 79798730804, 99748413505, 199496827010, 398993654020]

約数ペア:

[(1, 398993654020), (2, 199496827010), (4, 99748413505), (5, 79798730804), (10, 39899365402), (13, 30691819540), (20, 19949682701), (26, 15345909770), (52, 7672954885), (65, 6138363908), (130, 3069181954), (260, 1534590977), (317, 1258655060), (634, 629327530), (1268, 314663765), (1585, 251731012), (3170, 125865506), (4121, 96819620), (6340, 62932753), (8242, 48409810), (16484, 24204905), (20605, 19363924), (41210, 9681962), (82420, 4840981)]