18632680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:139

約数の個数: 128

約数和(自身を含む): 50388480

約数和(自身を除く): 31755800

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 47, 53, 55, 68, 85, 88, 94, 106, 110, 136, 170, 187, 188, 212, 220, 235, 265, 340, 374, 376, 424, 440, 470, 517, 530, 583, 680, 748, 799, 901, 935, 940, 1034, 1060, 1166, 1496, 1598, 1802, 1870, 1880, 2068, 2120, 2332, 2491, 2585, 2915, 3196, 3604, 3740, 3995, 4136, 4505, 4664, 4982, 5170, 5830, 6392, 7208, 7480, 7990, 8789, 9010, 9911, 9964, 10340, 11660, 12455, 15980, 17578, 18020, 19822, 19928, 20680, 23320, 24910, 27401, 31960, 35156, 36040, 39644, 42347, 43945, 49555, 49820, 54802, 70312, 79288, 84694, 87890, 99110, 99640, 109604, 137005, 169388, 175780, 198220, 211735, 219208, 274010, 338776, 351560, 396440, 423470, 465817, 548020, 846940, 931634, 1096040, 1693880, 1863268, 2329085, 3726536, 4658170, 9316340, 18632680]

約数ペア:

[(1, 18632680), (2, 9316340), (4, 4658170), (5, 3726536), (8, 2329085), (10, 1863268), (11, 1693880), (17, 1096040), (20, 931634), (22, 846940), (34, 548020), (40, 465817), (44, 423470), (47, 396440), (53, 351560), (55, 338776), (68, 274010), (85, 219208), (88, 211735), (94, 198220), (106, 175780), (110, 169388), (136, 137005), (170, 109604), (187, 99640), (188, 99110), (212, 87890), (220, 84694), (235, 79288), (265, 70312), (340, 54802), (374, 49820), (376, 49555), (424, 43945), (440, 42347), (470, 39644), (517, 36040), (530, 35156), (583, 31960), (680, 27401), (748, 24910), (799, 23320), (901, 20680), (935, 19928), (940, 19822), (1034, 18020), (1060, 17578), (1166, 15980), (1496, 12455), (1598, 11660), (1802, 10340), (1870, 9964), (1880, 9911), (2068, 9010), (2120, 8789), (2332, 7990), (2491, 7480), (2585, 7208), (2915, 6392), (3196, 5830), (3604, 5170), (3740, 4982), (3995, 4664), (4136, 4505)]