28306240

素因数分解:

$2^6\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1669}}^1$

素因数の和:1739

約数の個数: 56

約数和(自身を含む): 68717160

約数和(自身を除く): 40410920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 160, 212, 265, 320, 424, 530, 848, 1060, 1669, 1696, 2120, 3338, 3392, 4240, 6676, 8345, 8480, 13352, 16690, 16960, 26704, 33380, 53408, 66760, 88457, 106816, 133520, 176914, 267040, 353828, 442285, 534080, 707656, 884570, 1415312, 1769140, 2830624, 3538280, 5661248, 7076560, 14153120, 28306240]

約数ペア:

[(1, 28306240), (2, 14153120), (4, 7076560), (5, 5661248), (8, 3538280), (10, 2830624), (16, 1769140), (20, 1415312), (32, 884570), (40, 707656), (53, 534080), (64, 442285), (80, 353828), (106, 267040), (160, 176914), (212, 133520), (265, 106816), (320, 88457), (424, 66760), (530, 53408), (848, 33380), (1060, 26704), (1669, 16960), (1696, 16690), (2120, 13352), (3338, 8480), (3392, 8345), (4240, 6676)]