81175120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{877}}^1$

素因数の和:992

約数の個数: 80

約数和(自身を含む): 205768080

約数和(自身を除く): 124592960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 89, 104, 130, 178, 208, 260, 356, 445, 520, 712, 877, 890, 1040, 1157, 1424, 1754, 1780, 2314, 3508, 3560, 4385, 4628, 5785, 7016, 7120, 8770, 9256, 11401, 11570, 14032, 17540, 18512, 22802, 23140, 35080, 45604, 46280, 57005, 70160, 78053, 91208, 92560, 114010, 156106, 182416, 228020, 312212, 390265, 456040, 624424, 780530, 912080, 1014689, 1248848, 1561060, 2029378, 3122120, 4058756, 5073445, 6244240, 8117512, 10146890, 16235024, 20293780, 40587560, 81175120]

約数ペア:

[(1, 81175120), (2, 40587560), (4, 20293780), (5, 16235024), (8, 10146890), (10, 8117512), (13, 6244240), (16, 5073445), (20, 4058756), (26, 3122120), (40, 2029378), (52, 1561060), (65, 1248848), (80, 1014689), (89, 912080), (104, 780530), (130, 624424), (178, 456040), (208, 390265), (260, 312212), (356, 228020), (445, 182416), (520, 156106), (712, 114010), (877, 92560), (890, 91208), (1040, 78053), (1157, 70160), (1424, 57005), (1754, 46280), (1780, 45604), (2314, 35080), (3508, 23140), (3560, 22802), (4385, 18512), (4628, 17540), (5785, 14032), (7016, 11570), (7120, 11401), (8770, 9256)]