1520407820

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1\times {\mathrm{3407}}^1$

素因数の和:3890

約数の個数: 48

約数和(自身を含む): 3261783168

約数和(自身を除く): 1741375348

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 421, 530, 842, 1060, 1684, 2105, 3407, 4210, 6814, 8420, 13628, 17035, 22313, 34070, 44626, 68140, 89252, 111565, 180571, 223130, 361142, 446260, 722284, 902855, 1434347, 1805710, 2868694, 3611420, 5737388, 7171735, 14343470, 28686940, 76020391, 152040782, 304081564, 380101955, 760203910, 1520407820]

約数ペア:

[(1, 1520407820), (2, 760203910), (4, 380101955), (5, 304081564), (10, 152040782), (20, 76020391), (53, 28686940), (106, 14343470), (212, 7171735), (265, 5737388), (421, 3611420), (530, 2868694), (842, 1805710), (1060, 1434347), (1684, 902855), (2105, 722284), (3407, 446260), (4210, 361142), (6814, 223130), (8420, 180571), (13628, 111565), (17035, 89252), (22313, 68140), (34070, 44626)]