199020820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{7817}}^1$

素因数の和:7912

約数の個数: 48

約数和(自身を含む): 446564160

約数和(自身を除く): 247543340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 67, 76, 95, 134, 190, 268, 335, 380, 670, 1273, 1340, 2546, 5092, 6365, 7817, 12730, 15634, 25460, 31268, 39085, 78170, 148523, 156340, 297046, 523739, 594092, 742615, 1047478, 1485230, 2094956, 2618695, 2970460, 5237390, 9951041, 10474780, 19902082, 39804164, 49755205, 99510410, 199020820]

約数ペア:

[(1, 199020820), (2, 99510410), (4, 49755205), (5, 39804164), (10, 19902082), (19, 10474780), (20, 9951041), (38, 5237390), (67, 2970460), (76, 2618695), (95, 2094956), (134, 1485230), (190, 1047478), (268, 742615), (335, 594092), (380, 523739), (670, 297046), (1273, 156340), (1340, 148523), (2546, 78170), (5092, 39085), (6365, 31268), (7817, 25460), (12730, 15634)]