64731290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{359}}^1$

素因数の和:471

約数の個数: 64

約数和(自身を含む): 134265600

約数和(自身を除く): 69534310

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 73, 95, 130, 146, 190, 247, 359, 365, 494, 718, 730, 949, 1235, 1387, 1795, 1898, 2470, 2774, 3590, 4667, 4745, 6821, 6935, 9334, 9490, 13642, 13870, 18031, 23335, 26207, 34105, 36062, 46670, 52414, 68210, 88673, 90155, 131035, 177346, 180310, 262070, 340691, 443365, 497933, 681382, 886730, 995866, 1703455, 2489665, 3406910, 4979330, 6473129, 12946258, 32365645, 64731290]

約数ペア:

[(1, 64731290), (2, 32365645), (5, 12946258), (10, 6473129), (13, 4979330), (19, 3406910), (26, 2489665), (38, 1703455), (65, 995866), (73, 886730), (95, 681382), (130, 497933), (146, 443365), (190, 340691), (247, 262070), (359, 180310), (365, 177346), (494, 131035), (718, 90155), (730, 88673), (949, 68210), (1235, 52414), (1387, 46670), (1795, 36062), (1898, 34105), (2470, 26207), (2774, 23335), (3590, 18031), (4667, 13870), (4745, 13642), (6821, 9490), (6935, 9334)]