31427960

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1$

素因数の和:360

約数の個数: 64

約数和(自身を含む): 73526400

約数和(自身を除く): 42098440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 73, 94, 146, 188, 229, 235, 292, 365, 376, 458, 470, 584, 730, 916, 940, 1145, 1460, 1832, 1880, 2290, 2920, 3431, 4580, 6862, 9160, 10763, 13724, 16717, 17155, 21526, 27448, 33434, 34310, 43052, 53815, 66868, 68620, 83585, 86104, 107630, 133736, 137240, 167170, 215260, 334340, 430520, 668680, 785699, 1571398, 3142796, 3928495, 6285592, 7856990, 15713980, 31427960]

約数ペア:

[(1, 31427960), (2, 15713980), (4, 7856990), (5, 6285592), (8, 3928495), (10, 3142796), (20, 1571398), (40, 785699), (47, 668680), (73, 430520), (94, 334340), (146, 215260), (188, 167170), (229, 137240), (235, 133736), (292, 107630), (365, 86104), (376, 83585), (458, 68620), (470, 66868), (584, 53815), (730, 43052), (916, 34310), (940, 33434), (1145, 27448), (1460, 21526), (1832, 17155), (1880, 16717), (2290, 13724), (2920, 10763), (3431, 9160), (4580, 6862)]