19928300

素因数分解:

$2^2\times 5^2\times 7^4\times {\mathrm{83}}^1$

素因数の和:125

約数の個数: 90

約数和(自身を含む): 51056628

約数和(自身を除く): 31128328

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 83, 98, 100, 140, 166, 175, 196, 245, 332, 343, 350, 415, 490, 581, 686, 700, 830, 980, 1162, 1225, 1372, 1660, 1715, 2075, 2324, 2401, 2450, 2905, 3430, 4067, 4150, 4802, 4900, 5810, 6860, 8134, 8300, 8575, 9604, 11620, 12005, 14525, 16268, 17150, 20335, 24010, 28469, 29050, 34300, 40670, 48020, 56938, 58100, 60025, 81340, 101675, 113876, 120050, 142345, 199283, 203350, 240100, 284690, 398566, 406700, 569380, 711725, 797132, 996415, 1423450, 1992830, 2846900, 3985660, 4982075, 9964150, 19928300]

約数ペア:

[(1, 19928300), (2, 9964150), (4, 4982075), (5, 3985660), (7, 2846900), (10, 1992830), (14, 1423450), (20, 996415), (25, 797132), (28, 711725), (35, 569380), (49, 406700), (50, 398566), (70, 284690), (83, 240100), (98, 203350), (100, 199283), (140, 142345), (166, 120050), (175, 113876), (196, 101675), (245, 81340), (332, 60025), (343, 58100), (350, 56938), (415, 48020), (490, 40670), (581, 34300), (686, 29050), (700, 28469), (830, 24010), (980, 20335), (1162, 17150), (1225, 16268), (1372, 14525), (1660, 12005), (1715, 11620), (2075, 9604), (2324, 8575), (2401, 8300), (2450, 8134), (2905, 6860), (3430, 5810), (4067, 4900), (4150, 4802)]