15400880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:115

約数の個数: 120

約数和(自身を含む): 41361936

約数和(自身を除く): 25961056

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 37, 40, 43, 44, 55, 74, 80, 86, 88, 110, 121, 148, 172, 176, 185, 215, 220, 242, 296, 344, 370, 407, 430, 440, 473, 484, 592, 605, 688, 740, 814, 860, 880, 946, 968, 1210, 1480, 1591, 1628, 1720, 1892, 1936, 2035, 2365, 2420, 2960, 3182, 3256, 3440, 3784, 4070, 4477, 4730, 4840, 5203, 6364, 6512, 7568, 7955, 8140, 8954, 9460, 9680, 10406, 12728, 15910, 16280, 17501, 17908, 18920, 20812, 22385, 25456, 26015, 31820, 32560, 35002, 35816, 37840, 41624, 44770, 52030, 63640, 70004, 71632, 83248, 87505, 89540, 104060, 127280, 140008, 175010, 179080, 192511, 208120, 280016, 350020, 358160, 385022, 416240, 700040, 770044, 962555, 1400080, 1540088, 1925110, 3080176, 3850220, 7700440, 15400880]

約数ペア:

[(1, 15400880), (2, 7700440), (4, 3850220), (5, 3080176), (8, 1925110), (10, 1540088), (11, 1400080), (16, 962555), (20, 770044), (22, 700040), (37, 416240), (40, 385022), (43, 358160), (44, 350020), (55, 280016), (74, 208120), (80, 192511), (86, 179080), (88, 175010), (110, 140008), (121, 127280), (148, 104060), (172, 89540), (176, 87505), (185, 83248), (215, 71632), (220, 70004), (242, 63640), (296, 52030), (344, 44770), (370, 41624), (407, 37840), (430, 35816), (440, 35002), (473, 32560), (484, 31820), (592, 26015), (605, 25456), (688, 22385), (740, 20812), (814, 18920), (860, 17908), (880, 17501), (946, 16280), (968, 15910), (1210, 12728), (1480, 10406), (1591, 9680), (1628, 9460), (1720, 8954), (1892, 8140), (1936, 7955), (2035, 7568), (2365, 6512), (2420, 6364), (2960, 5203), (3182, 4840), (3256, 4730), (3440, 4477), (3784, 4070)]