87507280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{509}}^1$

素因数の和:836

約数の個数: 80

約数和(自身を含む): 233735040

約数和(自身を除く): 146227760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 307, 509, 560, 614, 1018, 1228, 1535, 2036, 2149, 2456, 2545, 3070, 3563, 4072, 4298, 4912, 5090, 6140, 7126, 8144, 8596, 10180, 10745, 12280, 14252, 17192, 17815, 20360, 21490, 24560, 28504, 34384, 35630, 40720, 42980, 57008, 71260, 85960, 142520, 156263, 171920, 285040, 312526, 625052, 781315, 1093841, 1250104, 1562630, 2187682, 2500208, 3125260, 4375364, 5469205, 6250520, 8750728, 10938410, 12501040, 17501456, 21876820, 43753640, 87507280]

約数ペア:

[(1, 87507280), (2, 43753640), (4, 21876820), (5, 17501456), (7, 12501040), (8, 10938410), (10, 8750728), (14, 6250520), (16, 5469205), (20, 4375364), (28, 3125260), (35, 2500208), (40, 2187682), (56, 1562630), (70, 1250104), (80, 1093841), (112, 781315), (140, 625052), (280, 312526), (307, 285040), (509, 171920), (560, 156263), (614, 142520), (1018, 85960), (1228, 71260), (1535, 57008), (2036, 42980), (2149, 40720), (2456, 35630), (2545, 34384), (3070, 28504), (3563, 24560), (4072, 21490), (4298, 20360), (4912, 17815), (5090, 17192), (6140, 14252), (7126, 12280), (8144, 10745), (8596, 10180)]