254350090

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:391

約数の個数: 64

約数和(自身を含む): 498628224

約数和(自身を除く): 244278134

約数列:

[1, 2, 5, 10, 17, 34, 67, 85, 134, 137, 163, 170, 274, 326, 335, 670, 685, 815, 1139, 1370, 1630, 2278, 2329, 2771, 4658, 5542, 5695, 9179, 10921, 11390, 11645, 13855, 18358, 21842, 22331, 23290, 27710, 44662, 45895, 54605, 91790, 109210, 111655, 156043, 185657, 223310, 312086, 371314, 379627, 759254, 780215, 928285, 1496177, 1560430, 1856570, 1898135, 2992354, 3796270, 7480885, 14961770, 25435009, 50870018, 127175045, 254350090]

約数ペア:

[(1, 254350090), (2, 127175045), (5, 50870018), (10, 25435009), (17, 14961770), (34, 7480885), (67, 3796270), (85, 2992354), (134, 1898135), (137, 1856570), (163, 1560430), (170, 1496177), (274, 928285), (326, 780215), (335, 759254), (670, 379627), (685, 371314), (815, 312086), (1139, 223310), (1370, 185657), (1630, 156043), (2278, 111655), (2329, 109210), (2771, 91790), (4658, 54605), (5542, 45895), (5695, 44662), (9179, 27710), (10921, 23290), (11390, 22331), (11645, 21842), (13855, 18358)]