31226960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{22961}}^1$

素因数の和:22991

約数の個数: 40

約数和(自身を含む): 76876776

約数和(自身を除く): 45649816

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 22961, 45922, 91844, 114805, 183688, 229610, 367376, 390337, 459220, 780674, 918440, 1561348, 1836880, 1951685, 3122696, 3903370, 6245392, 7806740, 15613480, 31226960]

約数ペア:

[(1, 31226960), (2, 15613480), (4, 7806740), (5, 6245392), (8, 3903370), (10, 3122696), (16, 1951685), (17, 1836880), (20, 1561348), (34, 918440), (40, 780674), (68, 459220), (80, 390337), (85, 367376), (136, 229610), (170, 183688), (272, 114805), (340, 91844), (680, 45922), (1360, 22961)]