31143640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1913}}^1$

素因数の和:1972

約数の個数: 64

約数和(自身を含む): 78550560

約数和(自身を除く): 47406920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 185, 220, 296, 370, 407, 440, 740, 814, 1480, 1628, 1913, 2035, 3256, 3826, 4070, 7652, 8140, 9565, 15304, 16280, 19130, 21043, 38260, 42086, 70781, 76520, 84172, 105215, 141562, 168344, 210430, 283124, 353905, 420860, 566248, 707810, 778591, 841720, 1415620, 1557182, 2831240, 3114364, 3892955, 6228728, 7785910, 15571820, 31143640]

約数ペア:

[(1, 31143640), (2, 15571820), (4, 7785910), (5, 6228728), (8, 3892955), (10, 3114364), (11, 2831240), (20, 1557182), (22, 1415620), (37, 841720), (40, 778591), (44, 707810), (55, 566248), (74, 420860), (88, 353905), (110, 283124), (148, 210430), (185, 168344), (220, 141562), (296, 105215), (370, 84172), (407, 76520), (440, 70781), (740, 42086), (814, 38260), (1480, 21043), (1628, 19130), (1913, 16280), (2035, 15304), (3256, 9565), (3826, 8140), (4070, 7652)]