638577290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{739}}^1$

素因数の和:816

約数の個数: 96

約数和(自身を含む): 1373984640

約数和(自身を除く): 735407350

約数列:

[1, 2, 5, 10, 13, 17, 23, 26, 34, 46, 65, 85, 115, 130, 170, 221, 230, 289, 299, 391, 442, 578, 598, 739, 782, 1105, 1445, 1478, 1495, 1955, 2210, 2890, 2990, 3695, 3757, 3910, 5083, 6647, 7390, 7514, 9607, 10166, 12563, 13294, 16997, 18785, 19214, 25126, 25415, 33235, 33994, 37570, 48035, 50830, 62815, 66470, 84985, 86411, 96070, 125630, 163319, 169970, 172822, 213571, 220961, 288949, 326638, 427142, 432055, 441922, 577898, 816595, 864110, 1067855, 1104805, 1444745, 1633190, 2135710, 2209610, 2776423, 2889490, 3756337, 4912133, 5552846, 7512674, 9824266, 13882115, 18781685, 24560665, 27764230, 37563370, 49121330, 63857729, 127715458, 319288645, 638577290]

約数ペア:

[(1, 638577290), (2, 319288645), (5, 127715458), (10, 63857729), (13, 49121330), (17, 37563370), (23, 27764230), (26, 24560665), (34, 18781685), (46, 13882115), (65, 9824266), (85, 7512674), (115, 5552846), (130, 4912133), (170, 3756337), (221, 2889490), (230, 2776423), (289, 2209610), (299, 2135710), (391, 1633190), (442, 1444745), (578, 1104805), (598, 1067855), (739, 864110), (782, 816595), (1105, 577898), (1445, 441922), (1478, 432055), (1495, 427142), (1955, 326638), (2210, 288949), (2890, 220961), (2990, 213571), (3695, 172822), (3757, 169970), (3910, 163319), (5083, 125630), (6647, 96070), (7390, 86411), (7514, 84985), (9607, 66470), (10166, 62815), (12563, 50830), (13294, 48035), (16997, 37570), (18785, 33994), (19214, 33235), (25126, 25415)]