145942520

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{521}}^1$

素因数の和:728

約数の個数: 64

約数和(自身を含む): 338256000

約数和(自身を除く): 192313480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 149, 188, 235, 298, 376, 470, 521, 596, 745, 940, 1042, 1192, 1490, 1880, 2084, 2605, 2980, 4168, 5210, 5960, 7003, 10420, 14006, 20840, 24487, 28012, 35015, 48974, 56024, 70030, 77629, 97948, 122435, 140060, 155258, 195896, 244870, 280120, 310516, 388145, 489740, 621032, 776290, 979480, 1552580, 3105160, 3648563, 7297126, 14594252, 18242815, 29188504, 36485630, 72971260, 145942520]

約数ペア:

[(1, 145942520), (2, 72971260), (4, 36485630), (5, 29188504), (8, 18242815), (10, 14594252), (20, 7297126), (40, 3648563), (47, 3105160), (94, 1552580), (149, 979480), (188, 776290), (235, 621032), (298, 489740), (376, 388145), (470, 310516), (521, 280120), (596, 244870), (745, 195896), (940, 155258), (1042, 140060), (1192, 122435), (1490, 97948), (1880, 77629), (2084, 70030), (2605, 56024), (2980, 48974), (4168, 35015), (5210, 28012), (5960, 24487), (7003, 20840), (10420, 14006)]