64737560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{827}}^1$

素因数の和:960

約数の個数: 64

約数和(自身を含む): 155001600

約数和(自身を除く): 90264040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 103, 152, 190, 206, 380, 412, 515, 760, 824, 827, 1030, 1654, 1957, 2060, 3308, 3914, 4120, 4135, 6616, 7828, 8270, 9785, 15656, 15713, 16540, 19570, 31426, 33080, 39140, 62852, 78280, 78565, 85181, 125704, 157130, 170362, 314260, 340724, 425905, 628520, 681448, 851810, 1618439, 1703620, 3236878, 3407240, 6473756, 8092195, 12947512, 16184390, 32368780, 64737560]

約数ペア:

[(1, 64737560), (2, 32368780), (4, 16184390), (5, 12947512), (8, 8092195), (10, 6473756), (19, 3407240), (20, 3236878), (38, 1703620), (40, 1618439), (76, 851810), (95, 681448), (103, 628520), (152, 425905), (190, 340724), (206, 314260), (380, 170362), (412, 157130), (515, 125704), (760, 85181), (824, 78565), (827, 78280), (1030, 62852), (1654, 39140), (1957, 33080), (2060, 31426), (3308, 19570), (3914, 16540), (4120, 15713), (4135, 15656), (6616, 9785), (7828, 8270)]