64855960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{653}}^1$

素因数の和:868

約数の個数: 64

約数和(自身を含む): 158215680

約数和(自身を除く): 93359720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 191, 260, 382, 520, 653, 764, 955, 1306, 1528, 1910, 2483, 2612, 3265, 3820, 4966, 5224, 6530, 7640, 8489, 9932, 12415, 13060, 16978, 19864, 24830, 26120, 33956, 42445, 49660, 67912, 84890, 99320, 124723, 169780, 249446, 339560, 498892, 623615, 997784, 1247230, 1621399, 2494460, 3242798, 4988920, 6485596, 8106995, 12971192, 16213990, 32427980, 64855960]

約数ペア:

[(1, 64855960), (2, 32427980), (4, 16213990), (5, 12971192), (8, 8106995), (10, 6485596), (13, 4988920), (20, 3242798), (26, 2494460), (40, 1621399), (52, 1247230), (65, 997784), (104, 623615), (130, 498892), (191, 339560), (260, 249446), (382, 169780), (520, 124723), (653, 99320), (764, 84890), (955, 67912), (1306, 49660), (1528, 42445), (1910, 33956), (2483, 26120), (2612, 24830), (3265, 19864), (3820, 16978), (4966, 13060), (5224, 12415), (6530, 9932), (7640, 8489)]