16280440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 40383360

約数和(自身を除く): 24102920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 163, 220, 227, 326, 440, 454, 652, 815, 908, 1135, 1304, 1630, 1793, 1816, 2270, 2497, 3260, 3586, 4540, 4994, 6520, 7172, 8965, 9080, 9988, 12485, 14344, 17930, 19976, 24970, 35860, 37001, 49940, 71720, 74002, 99880, 148004, 185005, 296008, 370010, 407011, 740020, 814022, 1480040, 1628044, 2035055, 3256088, 4070110, 8140220, 16280440]

約数ペア:

[(1, 16280440), (2, 8140220), (4, 4070110), (5, 3256088), (8, 2035055), (10, 1628044), (11, 1480040), (20, 814022), (22, 740020), (40, 407011), (44, 370010), (55, 296008), (88, 185005), (110, 148004), (163, 99880), (220, 74002), (227, 71720), (326, 49940), (440, 37001), (454, 35860), (652, 24970), (815, 19976), (908, 17930), (1135, 14344), (1304, 12485), (1630, 9988), (1793, 9080), (1816, 8965), (2270, 7172), (2497, 6520), (3260, 4994), (3586, 4540)]