18799380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1471}}^1$

素因数の和:1557

約数の個数: 72

約数和(自身を含む): 57867264

約数和(自身を除く): 39067884

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 1471, 2130, 2556, 2942, 3195, 4260, 4413, 5884, 6390, 7355, 8826, 12780, 13239, 14710, 17652, 22065, 26478, 29420, 44130, 52956, 66195, 88260, 104441, 132390, 208882, 264780, 313323, 417764, 522205, 626646, 939969, 1044410, 1253292, 1566615, 1879938, 2088820, 3133230, 3759876, 4699845, 6266460, 9399690, 18799380]

約数ペア:

[(1, 18799380), (2, 9399690), (3, 6266460), (4, 4699845), (5, 3759876), (6, 3133230), (9, 2088820), (10, 1879938), (12, 1566615), (15, 1253292), (18, 1044410), (20, 939969), (30, 626646), (36, 522205), (45, 417764), (60, 313323), (71, 264780), (90, 208882), (142, 132390), (180, 104441), (213, 88260), (284, 66195), (355, 52956), (426, 44130), (639, 29420), (710, 26478), (852, 22065), (1065, 17652), (1278, 14710), (1420, 13239), (1471, 12780), (2130, 8826), (2556, 7355), (2942, 6390), (3195, 5884), (4260, 4413)]