20594600

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^2$

素因数の和:207

約数の個数: 72

約数和(自身を含む): 52151610

約数和(自身を除く): 31557010

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 89, 100, 104, 130, 178, 200, 260, 325, 356, 445, 520, 650, 712, 890, 1157, 1300, 1780, 2225, 2314, 2600, 3560, 4450, 4628, 5785, 7921, 8900, 9256, 11570, 15842, 17800, 23140, 28925, 31684, 39605, 46280, 57850, 63368, 79210, 102973, 115700, 158420, 198025, 205946, 231400, 316840, 396050, 411892, 514865, 792100, 823784, 1029730, 1584200, 2059460, 2574325, 4118920, 5148650, 10297300, 20594600]

約数ペア:

[(1, 20594600), (2, 10297300), (4, 5148650), (5, 4118920), (8, 2574325), (10, 2059460), (13, 1584200), (20, 1029730), (25, 823784), (26, 792100), (40, 514865), (50, 411892), (52, 396050), (65, 316840), (89, 231400), (100, 205946), (104, 198025), (130, 158420), (178, 115700), (200, 102973), (260, 79210), (325, 63368), (356, 57850), (445, 46280), (520, 39605), (650, 31684), (712, 28925), (890, 23140), (1157, 17800), (1300, 15842), (1780, 11570), (2225, 9256), (2314, 8900), (2600, 7921), (3560, 5785), (4450, 4628)]