180178380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{2389}}^1$

素因数の和:2823

約数の個数: 72

約数和(自身を含む): 548074800

約数和(自身を除く): 367896420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 419, 838, 1257, 1676, 2095, 2389, 2514, 3771, 4190, 4778, 5028, 6285, 7167, 7542, 8380, 9556, 11945, 12570, 14334, 15084, 18855, 21501, 23890, 25140, 28668, 35835, 37710, 43002, 47780, 71670, 75420, 86004, 107505, 143340, 215010, 430020, 1000991, 2001982, 3002973, 4003964, 5004955, 6005946, 9008919, 10009910, 12011892, 15014865, 18017838, 20019820, 30029730, 36035676, 45044595, 60059460, 90089190, 180178380]

約数ペア:

[(1, 180178380), (2, 90089190), (3, 60059460), (4, 45044595), (5, 36035676), (6, 30029730), (9, 20019820), (10, 18017838), (12, 15014865), (15, 12011892), (18, 10009910), (20, 9008919), (30, 6005946), (36, 5004955), (45, 4003964), (60, 3002973), (90, 2001982), (180, 1000991), (419, 430020), (838, 215010), (1257, 143340), (1676, 107505), (2095, 86004), (2389, 75420), (2514, 71670), (3771, 47780), (4190, 43002), (4778, 37710), (5028, 35835), (6285, 28668), (7167, 25140), (7542, 23890), (8380, 21501), (9556, 18855), (11945, 15084), (12570, 14334)]