19490640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6247}}^1$

素因数の和:6276

約数の個数: 80

約数和(自身を含む): 65079168

約数和(自身を除く): 45588528

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6247, 12494, 18741, 24988, 31235, 37482, 49976, 62470, 74964, 81211, 93705, 99952, 124940, 149928, 162422, 187410, 243633, 249880, 299856, 324844, 374820, 406055, 487266, 499760, 649688, 749640, 812110, 974532, 1218165, 1299376, 1499280, 1624220, 1949064, 2436330, 3248440, 3898128, 4872660, 6496880, 9745320, 19490640]

約数ペア:

[(1, 19490640), (2, 9745320), (3, 6496880), (4, 4872660), (5, 3898128), (6, 3248440), (8, 2436330), (10, 1949064), (12, 1624220), (13, 1499280), (15, 1299376), (16, 1218165), (20, 974532), (24, 812110), (26, 749640), (30, 649688), (39, 499760), (40, 487266), (48, 406055), (52, 374820), (60, 324844), (65, 299856), (78, 249880), (80, 243633), (104, 187410), (120, 162422), (130, 149928), (156, 124940), (195, 99952), (208, 93705), (240, 81211), (260, 74964), (312, 62470), (390, 49976), (520, 37482), (624, 31235), (780, 24988), (1040, 18741), (1560, 12494), (3120, 6247)]