19001380

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{181}}^2$

素因数の和:400

約数の個数: 36

約数和(自身を含む): 41508180

約数和(自身を除く): 22506800

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 181, 290, 362, 580, 724, 905, 1810, 3620, 5249, 10498, 20996, 26245, 32761, 52490, 65522, 104980, 131044, 163805, 327610, 655220, 950069, 1900138, 3800276, 4750345, 9500690, 19001380]

約数ペア:

[(1, 19001380), (2, 9500690), (4, 4750345), (5, 3800276), (10, 1900138), (20, 950069), (29, 655220), (58, 327610), (116, 163805), (145, 131044), (181, 104980), (290, 65522), (362, 52490), (580, 32761), (724, 26245), (905, 20996), (1810, 10498), (3620, 5249)]