19724950

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:206

約数の個数: 72

約数和(自身を含む): 43637832

約数和(自身を除く): 23912882

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 83, 97, 98, 166, 175, 194, 245, 350, 415, 485, 490, 581, 679, 830, 970, 1162, 1225, 1358, 2075, 2425, 2450, 2905, 3395, 4067, 4150, 4753, 4850, 5810, 6790, 8051, 8134, 9506, 14525, 16102, 16975, 20335, 23765, 29050, 33950, 40255, 40670, 47530, 56357, 80510, 101675, 112714, 118825, 201275, 203350, 237650, 281785, 394499, 402550, 563570, 788998, 1408925, 1972495, 2817850, 3944990, 9862475, 19724950]

約数ペア:

[(1, 19724950), (2, 9862475), (5, 3944990), (7, 2817850), (10, 1972495), (14, 1408925), (25, 788998), (35, 563570), (49, 402550), (50, 394499), (70, 281785), (83, 237650), (97, 203350), (98, 201275), (166, 118825), (175, 112714), (194, 101675), (245, 80510), (350, 56357), (415, 47530), (485, 40670), (490, 40255), (581, 33950), (679, 29050), (830, 23765), (970, 20335), (1162, 16975), (1225, 16102), (1358, 14525), (2075, 9506), (2425, 8134), (2450, 8051), (2905, 6790), (3395, 5810), (4067, 4850), (4150, 4753)]