12839890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:203

約数の個数: 64

約数和(自身を含む): 27998208

約数和(自身を除く): 15158318

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 61, 62, 70, 97, 122, 155, 194, 217, 305, 310, 427, 434, 485, 610, 679, 854, 970, 1085, 1358, 1891, 2135, 2170, 3007, 3395, 3782, 4270, 5917, 6014, 6790, 9455, 11834, 13237, 15035, 18910, 21049, 26474, 29585, 30070, 41419, 42098, 59170, 66185, 82838, 105245, 132370, 183427, 207095, 210490, 366854, 414190, 917135, 1283989, 1834270, 2567978, 6419945, 12839890]

約数ペア:

[(1, 12839890), (2, 6419945), (5, 2567978), (7, 1834270), (10, 1283989), (14, 917135), (31, 414190), (35, 366854), (61, 210490), (62, 207095), (70, 183427), (97, 132370), (122, 105245), (155, 82838), (194, 66185), (217, 59170), (305, 42098), (310, 41419), (427, 30070), (434, 29585), (485, 26474), (610, 21049), (679, 18910), (854, 15035), (970, 13237), (1085, 11834), (1358, 9455), (1891, 6790), (2135, 6014), (2170, 5917), (3007, 4270), (3395, 3782)]