20032480

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9631}}^1$

素因数の和:9659

約数の個数: 48

約数和(自身を含む): 50972544

約数和(自身を除く): 30940064

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9631, 19262, 38524, 48155, 77048, 96310, 125203, 154096, 192620, 250406, 308192, 385240, 500812, 626015, 770480, 1001624, 1252030, 1540960, 2003248, 2504060, 4006496, 5008120, 10016240, 20032480]

約数ペア:

[(1, 20032480), (2, 10016240), (4, 5008120), (5, 4006496), (8, 2504060), (10, 2003248), (13, 1540960), (16, 1252030), (20, 1001624), (26, 770480), (32, 626015), (40, 500812), (52, 385240), (65, 308192), (80, 250406), (104, 192620), (130, 154096), (160, 125203), (208, 96310), (260, 77048), (416, 48155), (520, 38524), (1040, 19262), (2080, 9631)]