19635920

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{2383}}^1$

素因数の和:2499

約数の個数: 40

約数和(自身を含む): 46116096

約数和(自身を除く): 26480176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 2383, 4120, 4766, 8240, 9532, 11915, 19064, 23830, 38128, 47660, 95320, 190640, 245449, 490898, 981796, 1227245, 1963592, 2454490, 3927184, 4908980, 9817960, 19635920]

約数ペア:

[(1, 19635920), (2, 9817960), (4, 4908980), (5, 3927184), (8, 2454490), (10, 1963592), (16, 1227245), (20, 981796), (40, 490898), (80, 245449), (103, 190640), (206, 95320), (412, 47660), (515, 38128), (824, 23830), (1030, 19064), (1648, 11915), (2060, 9532), (2383, 8240), (4120, 4766)]