18843960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{373}}^1\times {\mathrm{421}}^1$

素因数の和:808

約数の個数: 64

約数和(自身を含む): 56818080

約数和(自身を除く): 37974120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 373, 421, 746, 842, 1119, 1263, 1492, 1684, 1865, 2105, 2238, 2526, 2984, 3368, 3730, 4210, 4476, 5052, 5595, 6315, 7460, 8420, 8952, 10104, 11190, 12630, 14920, 16840, 22380, 25260, 44760, 50520, 157033, 314066, 471099, 628132, 785165, 942198, 1256264, 1570330, 1884396, 2355495, 3140660, 3768792, 4710990, 6281320, 9421980, 18843960]

約数ペア:

[(1, 18843960), (2, 9421980), (3, 6281320), (4, 4710990), (5, 3768792), (6, 3140660), (8, 2355495), (10, 1884396), (12, 1570330), (15, 1256264), (20, 942198), (24, 785165), (30, 628132), (40, 471099), (60, 314066), (120, 157033), (373, 50520), (421, 44760), (746, 25260), (842, 22380), (1119, 16840), (1263, 14920), (1492, 12630), (1684, 11190), (1865, 10104), (2105, 8952), (2238, 8420), (2526, 7460), (2984, 6315), (3368, 5595), (3730, 5052), (4210, 4476)]