19889910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7129}}^1$

素因数の和:7173

約数の個数: 48

約数和(自身を含む): 53389440

約数和(自身を除く): 33499530

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 7129, 14258, 21387, 35645, 42774, 64161, 71290, 106935, 128322, 213870, 220999, 320805, 441998, 641610, 662997, 1104995, 1325994, 1988991, 2209990, 3314985, 3977982, 6629970, 9944955, 19889910]

約数ペア:

[(1, 19889910), (2, 9944955), (3, 6629970), (5, 3977982), (6, 3314985), (9, 2209990), (10, 1988991), (15, 1325994), (18, 1104995), (30, 662997), (31, 641610), (45, 441998), (62, 320805), (90, 220999), (93, 213870), (155, 128322), (186, 106935), (279, 71290), (310, 64161), (465, 42774), (558, 35645), (930, 21387), (1395, 14258), (2790, 7129)]