4021520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2957}}^1$

素因数の和:2987

約数の個数: 40

約数和(自身を含む): 9903384

約数和(自身を除く): 5881864

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 2957, 5914, 11828, 14785, 23656, 29570, 47312, 50269, 59140, 100538, 118280, 201076, 236560, 251345, 402152, 502690, 804304, 1005380, 2010760, 4021520]

約数ペア:

[(1, 4021520), (2, 2010760), (4, 1005380), (5, 804304), (8, 502690), (10, 402152), (16, 251345), (17, 236560), (20, 201076), (34, 118280), (40, 100538), (68, 59140), (80, 50269), (85, 47312), (136, 29570), (170, 23656), (272, 14785), (340, 11828), (680, 5914), (1360, 2957)]