81035820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{450199}}^1$

素因数の和:450214

約数の個数: 36

約数和(自身を含む): 245809200

約数和(自身を除く): 164773380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 450199, 900398, 1350597, 1800796, 2250995, 2701194, 4051791, 4501990, 5402388, 6752985, 8103582, 9003980, 13505970, 16207164, 20258955, 27011940, 40517910, 81035820]

約数ペア:

[(1, 81035820), (2, 40517910), (3, 27011940), (4, 20258955), (5, 16207164), (6, 13505970), (9, 9003980), (10, 8103582), (12, 6752985), (15, 5402388), (18, 4501990), (20, 4051791), (30, 2701194), (36, 2250995), (45, 1800796), (60, 1350597), (90, 900398), (180, 450199)]