129772220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{1597}}^1$

素因数の和:1862

約数の個数: 48

約数和(自身を含む): 289941120

約数和(自身を除く): 160168900

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 239, 340, 478, 956, 1195, 1597, 2390, 3194, 4063, 4780, 6388, 7985, 8126, 15970, 16252, 20315, 27149, 31940, 40630, 54298, 81260, 108596, 135745, 271490, 381683, 542980, 763366, 1526732, 1908415, 3816830, 6488611, 7633660, 12977222, 25954444, 32443055, 64886110, 129772220]

約数ペア:

[(1, 129772220), (2, 64886110), (4, 32443055), (5, 25954444), (10, 12977222), (17, 7633660), (20, 6488611), (34, 3816830), (68, 1908415), (85, 1526732), (170, 763366), (239, 542980), (340, 381683), (478, 271490), (956, 135745), (1195, 108596), (1597, 81260), (2390, 54298), (3194, 40630), (4063, 31940), (4780, 27149), (6388, 20315), (7985, 16252), (8126, 15970)]