20179940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3163}}^1$

素因数の和:3212

約数の個数: 48

約数和(自身を含む): 47839680

約数和(自身を除く): 27659740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 580, 638, 1276, 1595, 3163, 3190, 6326, 6380, 12652, 15815, 31630, 34793, 63260, 69586, 91727, 139172, 173965, 183454, 347930, 366908, 458635, 695860, 917270, 1008997, 1834540, 2017994, 4035988, 5044985, 10089970, 20179940]

約数ペア:

[(1, 20179940), (2, 10089970), (4, 5044985), (5, 4035988), (10, 2017994), (11, 1834540), (20, 1008997), (22, 917270), (29, 695860), (44, 458635), (55, 366908), (58, 347930), (110, 183454), (116, 173965), (145, 139172), (220, 91727), (290, 69586), (319, 63260), (580, 34793), (638, 31630), (1276, 15815), (1595, 12652), (3163, 6380), (3190, 6326)]