74680840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{143617}}^1$

素因数の和:143641

約数の個数: 32

約数和(自身を含む): 180958680

約数和(自身を除く): 106277840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 143617, 287234, 574468, 718085, 1148936, 1436170, 1867021, 2872340, 3734042, 5744680, 7468084, 9335105, 14936168, 18670210, 37340420, 74680840]

約数ペア:

[(1, 74680840), (2, 37340420), (4, 18670210), (5, 14936168), (8, 9335105), (10, 7468084), (13, 5744680), (20, 3734042), (26, 2872340), (40, 1867021), (52, 1436170), (65, 1148936), (104, 718085), (130, 574468), (260, 287234), (520, 143617)]