20043380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2347}}^1$

素因数の和:2424

約数の個数: 48

約数和(自身を含む): 48913536

約数和(自身を除く): 28870156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 2347, 4270, 4694, 8540, 9388, 11735, 16429, 23470, 32858, 46940, 65716, 82145, 143167, 164290, 286334, 328580, 572668, 715835, 1002169, 1431670, 2004338, 2863340, 4008676, 5010845, 10021690, 20043380]

約数ペア:

[(1, 20043380), (2, 10021690), (4, 5010845), (5, 4008676), (7, 2863340), (10, 2004338), (14, 1431670), (20, 1002169), (28, 715835), (35, 572668), (61, 328580), (70, 286334), (122, 164290), (140, 143167), (244, 82145), (305, 65716), (427, 46940), (610, 32858), (854, 23470), (1220, 16429), (1708, 11735), (2135, 9388), (2347, 8540), (4270, 4694)]