220148980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{20887}}^1$

素因数の和:20944

約数の個数: 48

約数和(自身を含む): 505322496

約数和(自身を除く): 285173516

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 124, 155, 170, 310, 340, 527, 620, 1054, 2108, 2635, 5270, 10540, 20887, 41774, 83548, 104435, 208870, 355079, 417740, 647497, 710158, 1294994, 1420316, 1775395, 2589988, 3237485, 3550790, 6474970, 7101580, 11007449, 12949940, 22014898, 44029796, 55037245, 110074490, 220148980]

約数ペア:

[(1, 220148980), (2, 110074490), (4, 55037245), (5, 44029796), (10, 22014898), (17, 12949940), (20, 11007449), (31, 7101580), (34, 6474970), (62, 3550790), (68, 3237485), (85, 2589988), (124, 1775395), (155, 1420316), (170, 1294994), (310, 710158), (340, 647497), (527, 417740), (620, 355079), (1054, 208870), (2108, 104435), (2635, 83548), (5270, 41774), (10540, 20887)]