20144940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{431}}^1$

素因数の和:503

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 40818900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 41, 57, 60, 76, 82, 95, 114, 123, 164, 190, 205, 228, 246, 285, 380, 410, 431, 492, 570, 615, 779, 820, 862, 1140, 1230, 1293, 1558, 1724, 2155, 2337, 2460, 2586, 3116, 3895, 4310, 4674, 5172, 6465, 7790, 8189, 8620, 9348, 11685, 12930, 15580, 16378, 17671, 23370, 24567, 25860, 32756, 35342, 40945, 46740, 49134, 53013, 70684, 81890, 88355, 98268, 106026, 122835, 163780, 176710, 212052, 245670, 265065, 335749, 353420, 491340, 530130, 671498, 1007247, 1060260, 1342996, 1678745, 2014494, 3357490, 4028988, 5036235, 6714980, 10072470, 20144940]

約数ペア:

[(1, 20144940), (2, 10072470), (3, 6714980), (4, 5036235), (5, 4028988), (6, 3357490), (10, 2014494), (12, 1678745), (15, 1342996), (19, 1060260), (20, 1007247), (30, 671498), (38, 530130), (41, 491340), (57, 353420), (60, 335749), (76, 265065), (82, 245670), (95, 212052), (114, 176710), (123, 163780), (164, 122835), (190, 106026), (205, 98268), (228, 88355), (246, 81890), (285, 70684), (380, 53013), (410, 49134), (431, 46740), (492, 40945), (570, 35342), (615, 32756), (779, 25860), (820, 24567), (862, 23370), (1140, 17671), (1230, 16378), (1293, 15580), (1558, 12930), (1724, 11685), (2155, 9348), (2337, 8620), (2460, 8189), (2586, 7790), (3116, 6465), (3895, 5172), (4310, 4674)]