1978460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2$

素因数の和:83

約数の個数: 72

約数和(自身を含む): 5016816

約数和(自身を除く): 3038356

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 23, 34, 44, 46, 55, 68, 85, 92, 110, 115, 170, 187, 220, 230, 253, 340, 374, 391, 460, 506, 529, 748, 782, 935, 1012, 1058, 1265, 1564, 1870, 1955, 2116, 2530, 2645, 3740, 3910, 4301, 5060, 5290, 5819, 7820, 8602, 8993, 10580, 11638, 17204, 17986, 21505, 23276, 29095, 35972, 43010, 44965, 58190, 86020, 89930, 98923, 116380, 179860, 197846, 395692, 494615, 989230, 1978460]

約数ペア:

[(1, 1978460), (2, 989230), (4, 494615), (5, 395692), (10, 197846), (11, 179860), (17, 116380), (20, 98923), (22, 89930), (23, 86020), (34, 58190), (44, 44965), (46, 43010), (55, 35972), (68, 29095), (85, 23276), (92, 21505), (110, 17986), (115, 17204), (170, 11638), (187, 10580), (220, 8993), (230, 8602), (253, 7820), (340, 5819), (374, 5290), (391, 5060), (460, 4301), (506, 3910), (529, 3740), (748, 2645), (782, 2530), (935, 2116), (1012, 1955), (1058, 1870), (1265, 1564)]