30940340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 71020152

約数和(自身を除く): 40079812

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 53, 68, 85, 101, 106, 170, 202, 212, 265, 289, 340, 404, 505, 530, 578, 901, 1010, 1060, 1156, 1445, 1717, 1802, 2020, 2890, 3434, 3604, 4505, 5353, 5780, 6868, 8585, 9010, 10706, 15317, 17170, 18020, 21412, 26765, 29189, 30634, 34340, 53530, 58378, 61268, 76585, 91001, 107060, 116756, 145945, 153170, 182002, 291890, 306340, 364004, 455005, 583780, 910010, 1547017, 1820020, 3094034, 6188068, 7735085, 15470170, 30940340]

約数ペア:

[(1, 30940340), (2, 15470170), (4, 7735085), (5, 6188068), (10, 3094034), (17, 1820020), (20, 1547017), (34, 910010), (53, 583780), (68, 455005), (85, 364004), (101, 306340), (106, 291890), (170, 182002), (202, 153170), (212, 145945), (265, 116756), (289, 107060), (340, 91001), (404, 76585), (505, 61268), (530, 58378), (578, 53530), (901, 34340), (1010, 30634), (1060, 29189), (1156, 26765), (1445, 21412), (1717, 18020), (1802, 17170), (2020, 15317), (2890, 10706), (3434, 9010), (3604, 8585), (4505, 6868), (5353, 5780)]