28783560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18451}}^1$

素因数の和:18478

約数の個数: 64

約数和(自身を含む): 92998080

約数和(自身を除く): 64214520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 18451, 36902, 55353, 73804, 92255, 110706, 147608, 184510, 221412, 239863, 276765, 369020, 442824, 479726, 553530, 719589, 738040, 959452, 1107060, 1199315, 1439178, 1918904, 2214120, 2398630, 2878356, 3597945, 4797260, 5756712, 7195890, 9594520, 14391780, 28783560]

約数ペア:

[(1, 28783560), (2, 14391780), (3, 9594520), (4, 7195890), (5, 5756712), (6, 4797260), (8, 3597945), (10, 2878356), (12, 2398630), (13, 2214120), (15, 1918904), (20, 1439178), (24, 1199315), (26, 1107060), (30, 959452), (39, 738040), (40, 719589), (52, 553530), (60, 479726), (65, 442824), (78, 369020), (104, 276765), (120, 239863), (130, 221412), (156, 184510), (195, 147608), (260, 110706), (312, 92255), (390, 73804), (520, 55353), (780, 36902), (1560, 18451)]