20154112420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{311}}^1\times {\mathrm{887}}^1$

素因数の和:1501

約数の個数: 96

約数和(自身を含む): 45940317696

約数和(自身を除く): 25786205276

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 281, 311, 562, 622, 887, 1124, 1244, 1405, 1555, 1774, 2810, 3110, 3548, 3653, 4043, 4435, 5620, 6220, 7306, 8086, 8870, 11531, 14612, 16172, 17740, 18265, 20215, 23062, 36530, 40430, 46124, 57655, 73060, 80860, 87391, 115310, 174782, 230620, 249247, 275857, 349564, 436955, 498494, 551714, 873910, 996988, 1103428, 1136083, 1246235, 1379285, 1747820, 2272166, 2492470, 2758570, 3240211, 3586141, 4544332, 4984940, 5517140, 5680415, 6480422, 7172282, 11360830, 12960844, 14344564, 16201055, 17930705, 22721660, 32402110, 35861410, 64804220, 71722820, 77515817, 155031634, 310063268, 387579085, 775158170, 1007705621, 1550316340, 2015411242, 4030822484, 5038528105, 10077056210, 20154112420]

約数ペア:

[(1, 20154112420), (2, 10077056210), (4, 5038528105), (5, 4030822484), (10, 2015411242), (13, 1550316340), (20, 1007705621), (26, 775158170), (52, 387579085), (65, 310063268), (130, 155031634), (260, 77515817), (281, 71722820), (311, 64804220), (562, 35861410), (622, 32402110), (887, 22721660), (1124, 17930705), (1244, 16201055), (1405, 14344564), (1555, 12960844), (1774, 11360830), (2810, 7172282), (3110, 6480422), (3548, 5680415), (3653, 5517140), (4043, 4984940), (4435, 4544332), (5620, 3586141), (6220, 3240211), (7306, 2758570), (8086, 2492470), (8870, 2272166), (11531, 1747820), (14612, 1379285), (16172, 1246235), (17740, 1136083), (18265, 1103428), (20215, 996988), (23062, 873910), (36530, 551714), (40430, 498494), (46124, 436955), (57655, 349564), (73060, 275857), (80860, 249247), (87391, 230620), (115310, 174782)]