649220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 1608768

約数和(自身を除く): 959548

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 227, 260, 286, 454, 572, 715, 908, 1135, 1430, 2270, 2497, 2860, 2951, 4540, 4994, 5902, 9988, 11804, 12485, 14755, 24970, 29510, 32461, 49940, 59020, 64922, 129844, 162305, 324610, 649220]

約数ペア:

[(1, 649220), (2, 324610), (4, 162305), (5, 129844), (10, 64922), (11, 59020), (13, 49940), (20, 32461), (22, 29510), (26, 24970), (44, 14755), (52, 12485), (55, 11804), (65, 9988), (110, 5902), (130, 4994), (143, 4540), (220, 2951), (227, 2860), (260, 2497), (286, 2270), (454, 1430), (572, 1135), (715, 908)]