18890040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12109}}^1$

素因数の和:12136

約数の個数: 64

約数和(自身を含む): 61034400

約数和(自身を除く): 42144360

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, 12109, 24218, 36327, 48436, 60545, 72654, 96872, 121090, 145308, 157417, 181635, 242180, 290616, 314834, 363270, 472251, 484360, 629668, 726540, 787085, 944502, 1259336, 1453080, 1574170, 1889004, 2361255, 3148340, 3778008, 4722510, 6296680, 9445020, 18890040]

約数ペア:

[(1, 18890040), (2, 9445020), (3, 6296680), (4, 4722510), (5, 3778008), (6, 3148340), (8, 2361255), (10, 1889004), (12, 1574170), (13, 1453080), (15, 1259336), (20, 944502), (24, 787085), (26, 726540), (30, 629668), (39, 484360), (40, 472251), (52, 363270), (60, 314834), (65, 290616), (78, 242180), (104, 181635), (120, 157417), (130, 145308), (156, 121090), (195, 96872), (260, 72654), (312, 60545), (390, 48436), (520, 36327), (780, 24218), (1560, 12109)]