20276740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:157

約数の個数: 96

約数和(自身を含む): 49641984

約数和(自身を除く): 29365244

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 47, 53, 55, 74, 94, 106, 110, 148, 185, 188, 212, 220, 235, 265, 370, 407, 470, 517, 530, 583, 740, 814, 940, 1034, 1060, 1166, 1628, 1739, 1961, 2035, 2068, 2332, 2491, 2585, 2915, 3478, 3922, 4070, 4982, 5170, 5830, 6956, 7844, 8140, 8695, 9805, 9964, 10340, 11660, 12455, 17390, 19129, 19610, 21571, 24910, 27401, 34780, 38258, 39220, 43142, 49820, 54802, 76516, 86284, 92167, 95645, 107855, 109604, 137005, 184334, 191290, 215710, 274010, 368668, 382580, 431420, 460835, 548020, 921670, 1013837, 1843340, 2027674, 4055348, 5069185, 10138370, 20276740]

約数ペア:

[(1, 20276740), (2, 10138370), (4, 5069185), (5, 4055348), (10, 2027674), (11, 1843340), (20, 1013837), (22, 921670), (37, 548020), (44, 460835), (47, 431420), (53, 382580), (55, 368668), (74, 274010), (94, 215710), (106, 191290), (110, 184334), (148, 137005), (185, 109604), (188, 107855), (212, 95645), (220, 92167), (235, 86284), (265, 76516), (370, 54802), (407, 49820), (470, 43142), (517, 39220), (530, 38258), (583, 34780), (740, 27401), (814, 24910), (940, 21571), (1034, 19610), (1060, 19129), (1166, 17390), (1628, 12455), (1739, 11660), (1961, 10340), (2035, 9964), (2068, 9805), (2332, 8695), (2491, 8140), (2585, 7844), (2915, 6956), (3478, 5830), (3922, 5170), (4070, 4982)]