18839640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8263}}^1$

素因数の和:8296

約数の個数: 64

約数和(自身を含む): 59500800

約数和(自身を除く): 40661160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 8263, 16526, 24789, 33052, 41315, 49578, 66104, 82630, 99156, 123945, 156997, 165260, 198312, 247890, 313994, 330520, 470991, 495780, 627988, 784985, 941982, 991560, 1255976, 1569970, 1883964, 2354955, 3139940, 3767928, 4709910, 6279880, 9419820, 18839640]

約数ペア:

[(1, 18839640), (2, 9419820), (3, 6279880), (4, 4709910), (5, 3767928), (6, 3139940), (8, 2354955), (10, 1883964), (12, 1569970), (15, 1255976), (19, 991560), (20, 941982), (24, 784985), (30, 627988), (38, 495780), (40, 470991), (57, 330520), (60, 313994), (76, 247890), (95, 198312), (114, 165260), (120, 156997), (152, 123945), (190, 99156), (228, 82630), (285, 66104), (380, 49578), (456, 41315), (570, 33052), (760, 24789), (1140, 16526), (2280, 8263)]