81106960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:161

約数の個数: 160

約数和(自身を含む): 219843072

約数和(自身を除く): 138736112

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 37, 40, 44, 47, 53, 55, 74, 80, 88, 94, 106, 110, 148, 176, 185, 188, 212, 220, 235, 265, 296, 370, 376, 407, 424, 440, 470, 517, 530, 583, 592, 740, 752, 814, 848, 880, 940, 1034, 1060, 1166, 1480, 1628, 1739, 1880, 1961, 2035, 2068, 2120, 2332, 2491, 2585, 2915, 2960, 3256, 3478, 3760, 3922, 4070, 4136, 4240, 4664, 4982, 5170, 5830, 6512, 6956, 7844, 8140, 8272, 8695, 9328, 9805, 9964, 10340, 11660, 12455, 13912, 15688, 16280, 17390, 19129, 19610, 19928, 20680, 21571, 23320, 24910, 27401, 27824, 31376, 32560, 34780, 38258, 39220, 39856, 41360, 43142, 46640, 49820, 54802, 69560, 76516, 78440, 86284, 92167, 95645, 99640, 107855, 109604, 137005, 139120, 153032, 156880, 172568, 184334, 191290, 199280, 215710, 219208, 274010, 306064, 345136, 368668, 382580, 431420, 438416, 460835, 548020, 737336, 765160, 862840, 921670, 1013837, 1096040, 1474672, 1530320, 1725680, 1843340, 2027674, 2192080, 3686680, 4055348, 5069185, 7373360, 8110696, 10138370, 16221392, 20276740, 40553480, 81106960]

約数ペア:

[(1, 81106960), (2, 40553480), (4, 20276740), (5, 16221392), (8, 10138370), (10, 8110696), (11, 7373360), (16, 5069185), (20, 4055348), (22, 3686680), (37, 2192080), (40, 2027674), (44, 1843340), (47, 1725680), (53, 1530320), (55, 1474672), (74, 1096040), (80, 1013837), (88, 921670), (94, 862840), (106, 765160), (110, 737336), (148, 548020), (176, 460835), (185, 438416), (188, 431420), (212, 382580), (220, 368668), (235, 345136), (265, 306064), (296, 274010), (370, 219208), (376, 215710), (407, 199280), (424, 191290), (440, 184334), (470, 172568), (517, 156880), (530, 153032), (583, 139120), (592, 137005), (740, 109604), (752, 107855), (814, 99640), (848, 95645), (880, 92167), (940, 86284), (1034, 78440), (1060, 76516), (1166, 69560), (1480, 54802), (1628, 49820), (1739, 46640), (1880, 43142), (1961, 41360), (2035, 39856), (2068, 39220), (2120, 38258), (2332, 34780), (2491, 32560), (2585, 31376), (2915, 27824), (2960, 27401), (3256, 24910), (3478, 23320), (3760, 21571), (3922, 20680), (4070, 19928), (4136, 19610), (4240, 19129), (4664, 17390), (4982, 16280), (5170, 15688), (5830, 13912), (6512, 12455), (6956, 11660), (7844, 10340), (8140, 9964), (8272, 9805), (8695, 9328)]