71895140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{2039}}^1$

素因数の和:2132

約数の個数: 48

約数和(自身を含む): 158336640

約数和(自身を除く): 86441500

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 82, 86, 164, 172, 205, 215, 410, 430, 820, 860, 1763, 2039, 3526, 4078, 7052, 8156, 8815, 10195, 17630, 20390, 35260, 40780, 83599, 87677, 167198, 175354, 334396, 350708, 417995, 438385, 835990, 876770, 1671980, 1753540, 3594757, 7189514, 14379028, 17973785, 35947570, 71895140]

約数ペア:

[(1, 71895140), (2, 35947570), (4, 17973785), (5, 14379028), (10, 7189514), (20, 3594757), (41, 1753540), (43, 1671980), (82, 876770), (86, 835990), (164, 438385), (172, 417995), (205, 350708), (215, 334396), (410, 175354), (430, 167198), (820, 87677), (860, 83599), (1763, 40780), (2039, 35260), (3526, 20390), (4078, 17630), (7052, 10195), (8156, 8815)]