19114940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1987}}^1$

素因数の和:2046

約数の個数: 48

約数和(自身を含む): 44419872

約数和(自身を除く): 25304932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 1987, 2405, 3974, 4810, 7948, 9620, 9935, 19870, 25831, 39740, 51662, 73519, 103324, 129155, 147038, 258310, 294076, 367595, 516620, 735190, 955747, 1470380, 1911494, 3822988, 4778735, 9557470, 19114940]

約数ペア:

[(1, 19114940), (2, 9557470), (4, 4778735), (5, 3822988), (10, 1911494), (13, 1470380), (20, 955747), (26, 735190), (37, 516620), (52, 367595), (65, 294076), (74, 258310), (130, 147038), (148, 129155), (185, 103324), (260, 73519), (370, 51662), (481, 39740), (740, 25831), (962, 19870), (1924, 9935), (1987, 9620), (2405, 7948), (3974, 4810)]