1261480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:130

約数の個数: 64

約数和(自身を含む): 3214080

約数和(自身を除く): 1952600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 61, 88, 94, 110, 122, 188, 220, 235, 244, 305, 376, 440, 470, 488, 517, 610, 671, 940, 1034, 1220, 1342, 1880, 2068, 2440, 2585, 2684, 2867, 3355, 4136, 5170, 5368, 5734, 6710, 10340, 11468, 13420, 14335, 20680, 22936, 26840, 28670, 31537, 57340, 63074, 114680, 126148, 157685, 252296, 315370, 630740, 1261480]

約数ペア:

[(1, 1261480), (2, 630740), (4, 315370), (5, 252296), (8, 157685), (10, 126148), (11, 114680), (20, 63074), (22, 57340), (40, 31537), (44, 28670), (47, 26840), (55, 22936), (61, 20680), (88, 14335), (94, 13420), (110, 11468), (122, 10340), (188, 6710), (220, 5734), (235, 5368), (244, 5170), (305, 4136), (376, 3355), (440, 2867), (470, 2684), (488, 2585), (517, 2440), (610, 2068), (671, 1880), (940, 1342), (1034, 1220)]