663042020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1\times {\mathrm{2039}}^1$

素因数の和:2348

約数の個数: 48

約数和(自身を含む): 1418860800

約数和(自身を除く): 755818780

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 229, 284, 355, 458, 710, 916, 1145, 1420, 2039, 2290, 4078, 4580, 8156, 10195, 16259, 20390, 32518, 40780, 65036, 81295, 144769, 162590, 289538, 325180, 466931, 579076, 723845, 933862, 1447690, 1867724, 2334655, 2895380, 4669310, 9338620, 33152101, 66304202, 132608404, 165760505, 331521010, 663042020]

約数ペア:

[(1, 663042020), (2, 331521010), (4, 165760505), (5, 132608404), (10, 66304202), (20, 33152101), (71, 9338620), (142, 4669310), (229, 2895380), (284, 2334655), (355, 1867724), (458, 1447690), (710, 933862), (916, 723845), (1145, 579076), (1420, 466931), (2039, 325180), (2290, 289538), (4078, 162590), (4580, 144769), (8156, 81295), (10195, 65036), (16259, 40780), (20390, 32518)]