251193140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:345

約数の個数: 96

約数和(自身を含む): 592704000

約数和(自身を除く): 341510860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 97, 110, 149, 158, 194, 220, 298, 316, 388, 395, 485, 596, 745, 790, 869, 970, 1067, 1490, 1580, 1639, 1738, 1940, 2134, 2980, 3278, 3476, 4268, 4345, 5335, 6556, 7663, 8195, 8690, 10670, 11771, 14453, 15326, 16390, 17380, 21340, 23542, 28906, 30652, 32780, 38315, 47084, 57812, 58855, 72265, 76630, 84293, 117710, 129481, 144530, 153260, 158983, 168586, 235420, 258962, 289060, 317966, 337172, 421465, 517924, 635932, 647405, 794915, 842930, 1141787, 1294810, 1589830, 1685860, 2283574, 2589620, 3179660, 4567148, 5708935, 11417870, 12559657, 22835740, 25119314, 50238628, 62798285, 125596570, 251193140]

約数ペア:

[(1, 251193140), (2, 125596570), (4, 62798285), (5, 50238628), (10, 25119314), (11, 22835740), (20, 12559657), (22, 11417870), (44, 5708935), (55, 4567148), (79, 3179660), (97, 2589620), (110, 2283574), (149, 1685860), (158, 1589830), (194, 1294810), (220, 1141787), (298, 842930), (316, 794915), (388, 647405), (395, 635932), (485, 517924), (596, 421465), (745, 337172), (790, 317966), (869, 289060), (970, 258962), (1067, 235420), (1490, 168586), (1580, 158983), (1639, 153260), (1738, 144530), (1940, 129481), (2134, 117710), (2980, 84293), (3278, 76630), (3476, 72265), (4268, 58855), (4345, 57812), (5335, 47084), (6556, 38315), (7663, 32780), (8195, 30652), (8690, 28906), (10670, 23542), (11771, 21340), (14453, 17380), (15326, 16390)]