20108348

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1$

素因数の和:123

約数の個数: 72

約数和(自身を含む): 42921648

約数和(自身を除く): 22813300

約数列:

[1, 2, 4, 13, 17, 23, 26, 34, 43, 46, 52, 68, 86, 92, 172, 221, 299, 391, 442, 529, 559, 598, 731, 782, 884, 989, 1058, 1118, 1196, 1462, 1564, 1978, 2116, 2236, 2924, 3956, 5083, 6877, 8993, 9503, 10166, 12857, 13754, 16813, 17986, 19006, 20332, 22747, 25714, 27508, 33626, 35972, 38012, 45494, 51428, 67252, 90988, 116909, 218569, 233818, 295711, 386699, 437138, 467636, 591422, 773398, 874276, 1182844, 1546796, 5027087, 10054174, 20108348]

約数ペア:

[(1, 20108348), (2, 10054174), (4, 5027087), (13, 1546796), (17, 1182844), (23, 874276), (26, 773398), (34, 591422), (43, 467636), (46, 437138), (52, 386699), (68, 295711), (86, 233818), (92, 218569), (172, 116909), (221, 90988), (299, 67252), (391, 51428), (442, 45494), (529, 38012), (559, 35972), (598, 33626), (731, 27508), (782, 25714), (884, 22747), (989, 20332), (1058, 19006), (1118, 17986), (1196, 16813), (1462, 13754), (1564, 12857), (1978, 10166), (2116, 9503), (2236, 8993), (2924, 6877), (3956, 5083)]