19915070

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{419}}^1$

素因数の和:537

約数の個数: 48

約数和(自身を含む): 42230160

約数和(自身を除く): 22315090

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 97, 98, 194, 245, 419, 485, 490, 679, 838, 970, 1358, 2095, 2933, 3395, 4190, 4753, 5866, 6790, 9506, 14665, 20531, 23765, 29330, 40643, 41062, 47530, 81286, 102655, 203215, 205310, 284501, 406430, 569002, 1422505, 1991507, 2845010, 3983014, 9957535, 19915070]

約数ペア:

[(1, 19915070), (2, 9957535), (5, 3983014), (7, 2845010), (10, 1991507), (14, 1422505), (35, 569002), (49, 406430), (70, 284501), (97, 205310), (98, 203215), (194, 102655), (245, 81286), (419, 47530), (485, 41062), (490, 40643), (679, 29330), (838, 23765), (970, 20531), (1358, 14665), (2095, 9506), (2933, 6790), (3395, 5866), (4190, 4753)]