20006140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1181}}^1$

素因数の和:1219

約数の個数: 72

約数和(自身を含む): 52821216

約数和(自身を除く): 32815076

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1181, 1210, 1540, 1694, 2362, 2420, 3388, 4235, 4724, 5905, 8267, 8470, 11810, 12991, 16534, 16940, 23620, 25982, 33068, 41335, 51964, 64955, 82670, 90937, 129910, 142901, 165340, 181874, 259820, 285802, 363748, 454685, 571604, 714505, 909370, 1000307, 1429010, 1818740, 2000614, 2858020, 4001228, 5001535, 10003070, 20006140]

約数ペア:

[(1, 20006140), (2, 10003070), (4, 5001535), (5, 4001228), (7, 2858020), (10, 2000614), (11, 1818740), (14, 1429010), (20, 1000307), (22, 909370), (28, 714505), (35, 571604), (44, 454685), (55, 363748), (70, 285802), (77, 259820), (110, 181874), (121, 165340), (140, 142901), (154, 129910), (220, 90937), (242, 82670), (308, 64955), (385, 51964), (484, 41335), (605, 33068), (770, 25982), (847, 23620), (1181, 16940), (1210, 16534), (1540, 12991), (1694, 11810), (2362, 8470), (2420, 8267), (3388, 5905), (4235, 4724)]