18287460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{359}}^1$

素因数の和:657

約数の個数: 72

約数和(自身を含む): 55823040

約数和(自身を除く): 37535580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 283, 359, 566, 718, 849, 1077, 1132, 1415, 1436, 1698, 1795, 2154, 2547, 2830, 3231, 3396, 3590, 4245, 4308, 5094, 5385, 5660, 6462, 7180, 8490, 10188, 10770, 12735, 12924, 16155, 16980, 21540, 25470, 32310, 50940, 64620, 101597, 203194, 304791, 406388, 507985, 609582, 914373, 1015970, 1219164, 1523955, 1828746, 2031940, 3047910, 3657492, 4571865, 6095820, 9143730, 18287460]

約数ペア:

[(1, 18287460), (2, 9143730), (3, 6095820), (4, 4571865), (5, 3657492), (6, 3047910), (9, 2031940), (10, 1828746), (12, 1523955), (15, 1219164), (18, 1015970), (20, 914373), (30, 609582), (36, 507985), (45, 406388), (60, 304791), (90, 203194), (180, 101597), (283, 64620), (359, 50940), (566, 32310), (718, 25470), (849, 21540), (1077, 16980), (1132, 16155), (1415, 12924), (1436, 12735), (1698, 10770), (1795, 10188), (2154, 8490), (2547, 7180), (2830, 6462), (3231, 5660), (3396, 5385), (3590, 5094), (4245, 4308)]