18874180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{317}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 43006320

約数和(自身を除く): 24132140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 229, 260, 317, 458, 634, 916, 1145, 1268, 1585, 2290, 2977, 3170, 4121, 4580, 5954, 6340, 8242, 11908, 14885, 16484, 20605, 29770, 41210, 59540, 72593, 82420, 145186, 290372, 362965, 725930, 943709, 1451860, 1887418, 3774836, 4718545, 9437090, 18874180]

約数ペア:

[(1, 18874180), (2, 9437090), (4, 4718545), (5, 3774836), (10, 1887418), (13, 1451860), (20, 943709), (26, 725930), (52, 362965), (65, 290372), (130, 145186), (229, 82420), (260, 72593), (317, 59540), (458, 41210), (634, 29770), (916, 20605), (1145, 16484), (1268, 14885), (1585, 11908), (2290, 8242), (2977, 6340), (3170, 5954), (4121, 4580)]