78469520

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:312

約数の個数: 80

約数和(自身を含む): 188023680

約数和(自身を除く): 109554160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 103, 107, 178, 206, 214, 356, 412, 428, 445, 515, 535, 712, 824, 856, 890, 1030, 1070, 1424, 1648, 1712, 1780, 2060, 2140, 3560, 4120, 4280, 7120, 8240, 8560, 9167, 9523, 11021, 18334, 19046, 22042, 36668, 38092, 44084, 45835, 47615, 55105, 73336, 76184, 88168, 91670, 95230, 110210, 146672, 152368, 176336, 183340, 190460, 220420, 366680, 380920, 440840, 733360, 761840, 881680, 980869, 1961738, 3923476, 4904345, 7846952, 9808690, 15693904, 19617380, 39234760, 78469520]

約数ペア:

[(1, 78469520), (2, 39234760), (4, 19617380), (5, 15693904), (8, 9808690), (10, 7846952), (16, 4904345), (20, 3923476), (40, 1961738), (80, 980869), (89, 881680), (103, 761840), (107, 733360), (178, 440840), (206, 380920), (214, 366680), (356, 220420), (412, 190460), (428, 183340), (445, 176336), (515, 152368), (535, 146672), (712, 110210), (824, 95230), (856, 91670), (890, 88168), (1030, 76184), (1070, 73336), (1424, 55105), (1648, 47615), (1712, 45835), (1780, 44084), (2060, 38092), (2140, 36668), (3560, 22042), (4120, 19046), (4280, 18334), (7120, 11021), (8240, 9523), (8560, 9167)]