20715690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{269}}^1$

素因数の和:447

約数の個数: 64

約数和(自身を含む): 53187840

約数和(自身を除く): 32472150

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 151, 170, 255, 269, 302, 453, 510, 538, 755, 807, 906, 1345, 1510, 1614, 2265, 2567, 2690, 4035, 4530, 4573, 5134, 7701, 8070, 9146, 12835, 13719, 15402, 22865, 25670, 27438, 38505, 40619, 45730, 68595, 77010, 81238, 121857, 137190, 203095, 243714, 406190, 609285, 690523, 1218570, 1381046, 2071569, 3452615, 4143138, 6905230, 10357845, 20715690]

約数ペア:

[(1, 20715690), (2, 10357845), (3, 6905230), (5, 4143138), (6, 3452615), (10, 2071569), (15, 1381046), (17, 1218570), (30, 690523), (34, 609285), (51, 406190), (85, 243714), (102, 203095), (151, 137190), (170, 121857), (255, 81238), (269, 77010), (302, 68595), (453, 45730), (510, 40619), (538, 38505), (755, 27438), (807, 25670), (906, 22865), (1345, 15402), (1510, 13719), (1614, 12835), (2265, 9146), (2567, 8070), (2690, 7701), (4035, 5134), (4530, 4573)]