20122680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2749}}^1$

素因数の和:2824

約数の個数: 64

約数和(自身を含む): 61380000

約数和(自身を除く): 41257320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 305, 366, 488, 610, 732, 915, 1220, 1464, 1830, 2440, 2749, 3660, 5498, 7320, 8247, 10996, 13745, 16494, 21992, 27490, 32988, 41235, 54980, 65976, 82470, 109960, 164940, 167689, 329880, 335378, 503067, 670756, 838445, 1006134, 1341512, 1676890, 2012268, 2515335, 3353780, 4024536, 5030670, 6707560, 10061340, 20122680]

約数ペア:

[(1, 20122680), (2, 10061340), (3, 6707560), (4, 5030670), (5, 4024536), (6, 3353780), (8, 2515335), (10, 2012268), (12, 1676890), (15, 1341512), (20, 1006134), (24, 838445), (30, 670756), (40, 503067), (60, 335378), (61, 329880), (120, 167689), (122, 164940), (183, 109960), (244, 82470), (305, 65976), (366, 54980), (488, 41235), (610, 32988), (732, 27490), (915, 21992), (1220, 16494), (1464, 13745), (1830, 10996), (2440, 8247), (2749, 7320), (3660, 5498)]