19557660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4591}}^1$

素因数の和:4674

約数の個数: 48

約数和(自身を含む): 55544832

約数和(自身を除く): 35987172

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 4591, 9182, 13773, 18364, 22955, 27546, 45910, 55092, 68865, 91820, 137730, 275460, 325961, 651922, 977883, 1303844, 1629805, 1955766, 3259610, 3911532, 4889415, 6519220, 9778830, 19557660]

約数ペア:

[(1, 19557660), (2, 9778830), (3, 6519220), (4, 4889415), (5, 3911532), (6, 3259610), (10, 1955766), (12, 1629805), (15, 1303844), (20, 977883), (30, 651922), (60, 325961), (71, 275460), (142, 137730), (213, 91820), (284, 68865), (355, 55092), (426, 45910), (710, 27546), (852, 22955), (1065, 18364), (1420, 13773), (2130, 9182), (4260, 4591)]