71572280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137639}}^1$

素因数の和:137663

約数の個数: 32

約数和(自身を含む): 173426400

約数和(自身を除く): 101854120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 137639, 275278, 550556, 688195, 1101112, 1376390, 1789307, 2752780, 3578614, 5505560, 7157228, 8946535, 14314456, 17893070, 35786140, 71572280]

約数ペア:

[(1, 71572280), (2, 35786140), (4, 17893070), (5, 14314456), (8, 8946535), (10, 7157228), (13, 5505560), (20, 3578614), (26, 2752780), (40, 1789307), (52, 1376390), (65, 1101112), (104, 688195), (130, 550556), (260, 275278), (520, 137639)]