164633380

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1\times {\mathrm{431}}^1$

素因数の和:780

約数の個数: 48

約数和(自身を含む): 352719360

約数和(自身を除く): 188085980

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 269, 284, 355, 431, 538, 710, 862, 1076, 1345, 1420, 1724, 2155, 2690, 4310, 5380, 8620, 19099, 30601, 38198, 61202, 76396, 95495, 115939, 122404, 153005, 190990, 231878, 306010, 381980, 463756, 579695, 612020, 1159390, 2318780, 8231669, 16463338, 32926676, 41158345, 82316690, 164633380]

約数ペア:

[(1, 164633380), (2, 82316690), (4, 41158345), (5, 32926676), (10, 16463338), (20, 8231669), (71, 2318780), (142, 1159390), (269, 612020), (284, 579695), (355, 463756), (431, 381980), (538, 306010), (710, 231878), (862, 190990), (1076, 153005), (1345, 122404), (1420, 115939), (1724, 95495), (2155, 76396), (2690, 61202), (4310, 38198), (5380, 30601), (8620, 19099)]