19808730

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2473}}^1$

素因数の和:2575

約数の個数: 48

約数和(自身を含む): 52102440

約数和(自身を除く): 32293710

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 89, 90, 178, 267, 445, 534, 801, 890, 1335, 1602, 2473, 2670, 4005, 4946, 7419, 8010, 12365, 14838, 22257, 24730, 37095, 44514, 74190, 111285, 220097, 222570, 440194, 660291, 1100485, 1320582, 1980873, 2200970, 3301455, 3961746, 6602910, 9904365, 19808730]

約数ペア:

[(1, 19808730), (2, 9904365), (3, 6602910), (5, 3961746), (6, 3301455), (9, 2200970), (10, 1980873), (15, 1320582), (18, 1100485), (30, 660291), (45, 440194), (89, 222570), (90, 220097), (178, 111285), (267, 74190), (445, 44514), (534, 37095), (801, 24730), (890, 22257), (1335, 14838), (1602, 12365), (2473, 8010), (2670, 7419), (4005, 4946)]