61919820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{821}}^1$

素因数の和:1255

約数の個数: 72

約数和(自身を含む): 188501040

約数和(自身を除く): 126581220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 419, 821, 838, 1257, 1642, 1676, 2095, 2463, 2514, 3284, 3771, 4105, 4190, 4926, 5028, 6285, 7389, 7542, 8210, 8380, 9852, 12315, 12570, 14778, 15084, 16420, 18855, 24630, 25140, 29556, 36945, 37710, 49260, 73890, 75420, 147780, 343999, 687998, 1031997, 1375996, 1719995, 2063994, 3095991, 3439990, 4127988, 5159985, 6191982, 6879980, 10319970, 12383964, 15479955, 20639940, 30959910, 61919820]

約数ペア:

[(1, 61919820), (2, 30959910), (3, 20639940), (4, 15479955), (5, 12383964), (6, 10319970), (9, 6879980), (10, 6191982), (12, 5159985), (15, 4127988), (18, 3439990), (20, 3095991), (30, 2063994), (36, 1719995), (45, 1375996), (60, 1031997), (90, 687998), (180, 343999), (419, 147780), (821, 75420), (838, 73890), (1257, 49260), (1642, 37710), (1676, 36945), (2095, 29556), (2463, 25140), (2514, 24630), (3284, 18855), (3771, 16420), (4105, 15084), (4190, 14778), (4926, 12570), (5028, 12315), (6285, 9852), (7389, 8380), (7542, 8210)]