20480150

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:297

約数の個数: 48

約数和(自身を含む): 40080768

約数和(自身を除く): 19600618

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 73, 146, 155, 181, 310, 362, 365, 730, 775, 905, 1550, 1810, 1825, 2263, 3650, 4525, 4526, 5611, 9050, 11222, 11315, 13213, 22630, 26426, 28055, 56110, 56575, 66065, 113150, 132130, 140275, 280550, 330325, 409603, 660650, 819206, 2048015, 4096030, 10240075, 20480150]

約数ペア:

[(1, 20480150), (2, 10240075), (5, 4096030), (10, 2048015), (25, 819206), (31, 660650), (50, 409603), (62, 330325), (73, 280550), (146, 140275), (155, 132130), (181, 113150), (310, 66065), (362, 56575), (365, 56110), (730, 28055), (775, 26426), (905, 22630), (1550, 13213), (1810, 11315), (1825, 11222), (2263, 9050), (3650, 5611), (4525, 4526)]