71640620

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1\times {\mathrm{419}}^1$

素因数の和:614

約数の個数: 48

約数和(自身を含む): 154103040

約数和(自身を除く): 82462420

約数列:

[1, 2, 4, 5, 10, 20, 83, 103, 166, 206, 332, 412, 415, 419, 515, 830, 838, 1030, 1660, 1676, 2060, 2095, 4190, 8380, 8549, 17098, 34196, 34777, 42745, 43157, 69554, 85490, 86314, 139108, 170980, 172628, 173885, 215785, 347770, 431570, 695540, 863140, 3582031, 7164062, 14328124, 17910155, 35820310, 71640620]

約数ペア:

[(1, 71640620), (2, 35820310), (4, 17910155), (5, 14328124), (10, 7164062), (20, 3582031), (83, 863140), (103, 695540), (166, 431570), (206, 347770), (332, 215785), (412, 173885), (415, 172628), (419, 170980), (515, 139108), (830, 86314), (838, 85490), (1030, 69554), (1660, 43157), (1676, 42745), (2060, 34777), (2095, 34196), (4190, 17098), (8380, 8549)]