20280632500

素因数分解:

$2^2\times 5^4\times {\mathrm{523}}^1\times {\mathrm{15511}}^1$

素因数の和:16058

約数の個数: 60

約数和(自身を含む): 44437350496

約数和(自身を除く): 24156717996

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 523, 625, 1046, 1250, 2092, 2500, 2615, 5230, 10460, 13075, 15511, 26150, 31022, 52300, 62044, 65375, 77555, 130750, 155110, 261500, 310220, 326875, 387775, 653750, 775550, 1307500, 1551100, 1938875, 3877750, 7755500, 8112253, 9694375, 16224506, 19388750, 32449012, 38777500, 40561265, 81122530, 162245060, 202806325, 405612650, 811225300, 1014031625, 2028063250, 4056126500, 5070158125, 10140316250, 20280632500]

約数ペア:

[(1, 20280632500), (2, 10140316250), (4, 5070158125), (5, 4056126500), (10, 2028063250), (20, 1014031625), (25, 811225300), (50, 405612650), (100, 202806325), (125, 162245060), (250, 81122530), (500, 40561265), (523, 38777500), (625, 32449012), (1046, 19388750), (1250, 16224506), (2092, 9694375), (2500, 8112253), (2615, 7755500), (5230, 3877750), (10460, 1938875), (13075, 1551100), (15511, 1307500), (26150, 775550), (31022, 653750), (52300, 387775), (62044, 326875), (65375, 310220), (77555, 261500), (130750, 155110)]