20635280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{15173}}^1$

素因数の和:15203

約数の個数: 40

約数和(自身を含む): 50802552

約数和(自身を除く): 30167272

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 15173, 30346, 60692, 75865, 121384, 151730, 242768, 257941, 303460, 515882, 606920, 1031764, 1213840, 1289705, 2063528, 2579410, 4127056, 5158820, 10317640, 20635280]

約数ペア:

[(1, 20635280), (2, 10317640), (4, 5158820), (5, 4127056), (8, 2579410), (10, 2063528), (16, 1289705), (17, 1213840), (20, 1031764), (34, 606920), (40, 515882), (68, 303460), (80, 257941), (85, 242768), (136, 151730), (170, 121384), (272, 75865), (340, 60692), (680, 30346), (1360, 15173)]