15280520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12323}}^1$

素因数の和:12365

約数の個数: 32

約数和(自身を含む): 35493120

約数和(自身を除く): 20212600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 12323, 24646, 49292, 61615, 98584, 123230, 246460, 382013, 492920, 764026, 1528052, 1910065, 3056104, 3820130, 7640260, 15280520]

約数ペア:

[(1, 15280520), (2, 7640260), (4, 3820130), (5, 3056104), (8, 1910065), (10, 1528052), (20, 764026), (31, 492920), (40, 382013), (62, 246460), (124, 123230), (155, 98584), (248, 61615), (310, 49292), (620, 24646), (1240, 12323)]