20495490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{877}}^1$

素因数の和:947

約数の個数: 64

約数和(自身を含む): 53101440

約数和(自身を除く): 32605950

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 41, 57, 82, 95, 114, 123, 190, 205, 246, 285, 410, 570, 615, 779, 877, 1230, 1558, 1754, 2337, 2631, 3895, 4385, 4674, 5262, 7790, 8770, 11685, 13155, 16663, 23370, 26310, 33326, 35957, 49989, 71914, 83315, 99978, 107871, 166630, 179785, 215742, 249945, 359570, 499890, 539355, 683183, 1078710, 1366366, 2049549, 3415915, 4099098, 6831830, 10247745, 20495490]

約数ペア:

[(1, 20495490), (2, 10247745), (3, 6831830), (5, 4099098), (6, 3415915), (10, 2049549), (15, 1366366), (19, 1078710), (30, 683183), (38, 539355), (41, 499890), (57, 359570), (82, 249945), (95, 215742), (114, 179785), (123, 166630), (190, 107871), (205, 99978), (246, 83315), (285, 71914), (410, 49989), (570, 35957), (615, 33326), (779, 26310), (877, 23370), (1230, 16663), (1558, 13155), (1754, 11685), (2337, 8770), (2631, 7790), (3895, 5262), (4385, 4674)]