127988020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{1481}}^1$

素因数の和:1668

約数の個数: 48

約数和(自身を含む): 280098000

約数和(自身を除く): 152109980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 149, 290, 298, 580, 596, 745, 1481, 1490, 2962, 2980, 4321, 5924, 7405, 8642, 14810, 17284, 21605, 29620, 42949, 43210, 85898, 86420, 171796, 214745, 220669, 429490, 441338, 858980, 882676, 1103345, 2206690, 4413380, 6399401, 12798802, 25597604, 31997005, 63994010, 127988020]

約数ペア:

[(1, 127988020), (2, 63994010), (4, 31997005), (5, 25597604), (10, 12798802), (20, 6399401), (29, 4413380), (58, 2206690), (116, 1103345), (145, 882676), (149, 858980), (290, 441338), (298, 429490), (580, 220669), (596, 214745), (745, 171796), (1481, 86420), (1490, 85898), (2962, 43210), (2980, 42949), (4321, 29620), (5924, 21605), (7405, 17284), (8642, 14810)]