28795960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:145

約数の個数: 96

約数和(自身を含む): 71616960

約数和(自身を除く): 42821000

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 53, 68, 85, 94, 106, 136, 170, 188, 212, 235, 265, 289, 340, 376, 424, 470, 530, 578, 680, 799, 901, 940, 1060, 1156, 1445, 1598, 1802, 1880, 2120, 2312, 2491, 2890, 3196, 3604, 3995, 4505, 4982, 5780, 6392, 7208, 7990, 9010, 9964, 11560, 12455, 13583, 15317, 15980, 18020, 19928, 24910, 27166, 30634, 31960, 36040, 42347, 49820, 54332, 61268, 67915, 76585, 84694, 99640, 108664, 122536, 135830, 153170, 169388, 211735, 271660, 306340, 338776, 423470, 543320, 612680, 719899, 846940, 1439798, 1693880, 2879596, 3599495, 5759192, 7198990, 14397980, 28795960]

約数ペア:

[(1, 28795960), (2, 14397980), (4, 7198990), (5, 5759192), (8, 3599495), (10, 2879596), (17, 1693880), (20, 1439798), (34, 846940), (40, 719899), (47, 612680), (53, 543320), (68, 423470), (85, 338776), (94, 306340), (106, 271660), (136, 211735), (170, 169388), (188, 153170), (212, 135830), (235, 122536), (265, 108664), (289, 99640), (340, 84694), (376, 76585), (424, 67915), (470, 61268), (530, 54332), (578, 49820), (680, 42347), (799, 36040), (901, 31960), (940, 30634), (1060, 27166), (1156, 24910), (1445, 19928), (1598, 18020), (1802, 15980), (1880, 15317), (2120, 13583), (2312, 12455), (2491, 11560), (2890, 9964), (3196, 9010), (3604, 7990), (3995, 7208), (4505, 6392), (4982, 5780)]