19631560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1987}}^1$

素因数の和:2030

約数の個数: 64

約数和(自身を含む): 50097600

約数和(自身を除く): 30466040

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 1987, 2470, 3974, 4940, 7948, 9880, 9935, 15896, 19870, 25831, 37753, 39740, 51662, 75506, 79480, 103324, 129155, 151012, 188765, 206648, 258310, 302024, 377530, 490789, 516620, 755060, 981578, 1033240, 1510120, 1963156, 2453945, 3926312, 4907890, 9815780, 19631560]

約数ペア:

[(1, 19631560), (2, 9815780), (4, 4907890), (5, 3926312), (8, 2453945), (10, 1963156), (13, 1510120), (19, 1033240), (20, 981578), (26, 755060), (38, 516620), (40, 490789), (52, 377530), (65, 302024), (76, 258310), (95, 206648), (104, 188765), (130, 151012), (152, 129155), (190, 103324), (247, 79480), (260, 75506), (380, 51662), (494, 39740), (520, 37753), (760, 25831), (988, 19870), (1235, 15896), (1976, 9935), (1987, 9880), (2470, 7948), (3974, 4940)]