8140220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 18845568

約数和(自身を除く): 10705348

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 163, 220, 227, 326, 454, 652, 815, 908, 1135, 1630, 1793, 2270, 2497, 3260, 3586, 4540, 4994, 7172, 8965, 9988, 12485, 17930, 24970, 35860, 37001, 49940, 74002, 148004, 185005, 370010, 407011, 740020, 814022, 1628044, 2035055, 4070110, 8140220]

約数ペア:

[(1, 8140220), (2, 4070110), (4, 2035055), (5, 1628044), (10, 814022), (11, 740020), (20, 407011), (22, 370010), (44, 185005), (55, 148004), (110, 74002), (163, 49940), (220, 37001), (227, 35860), (326, 24970), (454, 17930), (652, 12485), (815, 9988), (908, 8965), (1135, 7172), (1630, 4994), (1793, 4540), (2270, 3586), (2497, 3260)]