20237470

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:481

約数の個数: 64

約数和(自身を含む): 43752960

約数和(自身を除く): 23515490

約数列:

[1, 2, 5, 10, 11, 19, 22, 23, 38, 46, 55, 95, 110, 115, 190, 209, 230, 253, 418, 421, 437, 506, 842, 874, 1045, 1265, 2090, 2105, 2185, 2530, 4210, 4370, 4631, 4807, 7999, 9262, 9614, 9683, 15998, 19366, 23155, 24035, 39995, 46310, 48070, 48415, 79990, 87989, 96830, 106513, 175978, 183977, 213026, 367954, 439945, 532565, 879890, 919885, 1065130, 1839770, 2023747, 4047494, 10118735, 20237470]

約数ペア:

[(1, 20237470), (2, 10118735), (5, 4047494), (10, 2023747), (11, 1839770), (19, 1065130), (22, 919885), (23, 879890), (38, 532565), (46, 439945), (55, 367954), (95, 213026), (110, 183977), (115, 175978), (190, 106513), (209, 96830), (230, 87989), (253, 79990), (418, 48415), (421, 48070), (437, 46310), (506, 39995), (842, 24035), (874, 23155), (1045, 19366), (1265, 15998), (2090, 9683), (2105, 9614), (2185, 9262), (2530, 7999), (4210, 4807), (4370, 4631)]