15911440

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1931}}^1$

素因数の和:2047

約数の個数: 40

約数和(自身を含む): 37372608

約数和(自身を除く): 21461168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 1931, 2060, 3862, 4120, 7724, 8240, 9655, 15448, 19310, 30896, 38620, 77240, 154480, 198893, 397786, 795572, 994465, 1591144, 1988930, 3182288, 3977860, 7955720, 15911440]

約数ペア:

[(1, 15911440), (2, 7955720), (4, 3977860), (5, 3182288), (8, 1988930), (10, 1591144), (16, 994465), (20, 795572), (40, 397786), (80, 198893), (103, 154480), (206, 77240), (412, 38620), (515, 30896), (824, 19310), (1030, 15448), (1648, 9655), (1931, 8240), (2060, 7724), (3862, 4120)]