121010980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{2749}}^1$

素因数の和:2860

約数の個数: 48

約数和(自身を含む): 266112000

約数和(自身を除く): 145101020

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 620, 710, 1420, 2201, 2749, 4402, 5498, 8804, 10996, 11005, 13745, 22010, 27490, 44020, 54980, 85219, 170438, 195179, 340876, 390358, 426095, 780716, 852190, 975895, 1704380, 1951790, 3903580, 6050549, 12101098, 24202196, 30252745, 60505490, 121010980]

約数ペア:

[(1, 121010980), (2, 60505490), (4, 30252745), (5, 24202196), (10, 12101098), (20, 6050549), (31, 3903580), (62, 1951790), (71, 1704380), (124, 975895), (142, 852190), (155, 780716), (284, 426095), (310, 390358), (355, 340876), (620, 195179), (710, 170438), (1420, 85219), (2201, 54980), (2749, 44020), (4402, 27490), (5498, 22010), (8804, 13745), (10996, 11005)]