31273880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:189

約数の個数: 128

約数和(自身を含む): 84214080

約数和(自身を除く): 52940200

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 37, 40, 44, 55, 68, 74, 85, 88, 110, 113, 136, 148, 170, 185, 187, 220, 226, 296, 340, 370, 374, 407, 440, 452, 565, 629, 680, 740, 748, 814, 904, 935, 1130, 1243, 1258, 1480, 1496, 1628, 1870, 1921, 2035, 2260, 2486, 2516, 3145, 3256, 3740, 3842, 4070, 4181, 4520, 4972, 5032, 6215, 6290, 6919, 7480, 7684, 8140, 8362, 9605, 9944, 12430, 12580, 13838, 15368, 16280, 16724, 19210, 20905, 21131, 24860, 25160, 27676, 33448, 34595, 38420, 41810, 42262, 45991, 49720, 55352, 69190, 71077, 76840, 83620, 84524, 91982, 105655, 138380, 142154, 167240, 169048, 183964, 211310, 229955, 276760, 284308, 355385, 367928, 422620, 459910, 568616, 710770, 781847, 845240, 919820, 1421540, 1563694, 1839640, 2843080, 3127388, 3909235, 6254776, 7818470, 15636940, 31273880]

約数ペア:

[(1, 31273880), (2, 15636940), (4, 7818470), (5, 6254776), (8, 3909235), (10, 3127388), (11, 2843080), (17, 1839640), (20, 1563694), (22, 1421540), (34, 919820), (37, 845240), (40, 781847), (44, 710770), (55, 568616), (68, 459910), (74, 422620), (85, 367928), (88, 355385), (110, 284308), (113, 276760), (136, 229955), (148, 211310), (170, 183964), (185, 169048), (187, 167240), (220, 142154), (226, 138380), (296, 105655), (340, 91982), (370, 84524), (374, 83620), (407, 76840), (440, 71077), (452, 69190), (565, 55352), (629, 49720), (680, 45991), (740, 42262), (748, 41810), (814, 38420), (904, 34595), (935, 33448), (1130, 27676), (1243, 25160), (1258, 24860), (1480, 21131), (1496, 20905), (1628, 19210), (1870, 16724), (1921, 16280), (2035, 15368), (2260, 13838), (2486, 12580), (2516, 12430), (3145, 9944), (3256, 9605), (3740, 8362), (3842, 8140), (4070, 7684), (4181, 7480), (4520, 6919), (4972, 6290), (5032, 6215)]