81767608

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{197}}^1\times {\mathrm{307}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 167401080

約数和(自身を除く): 85633472

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 197, 307, 338, 394, 614, 676, 788, 1228, 1352, 1576, 2456, 2561, 3991, 5122, 7982, 10244, 15964, 20488, 31928, 33293, 51883, 60479, 66586, 103766, 120958, 133172, 207532, 241916, 266344, 415064, 483832, 786227, 1572454, 3144908, 6289816, 10220951, 20441902, 40883804, 81767608]

約数ペア:

[(1, 81767608), (2, 40883804), (4, 20441902), (8, 10220951), (13, 6289816), (26, 3144908), (52, 1572454), (104, 786227), (169, 483832), (197, 415064), (307, 266344), (338, 241916), (394, 207532), (614, 133172), (676, 120958), (788, 103766), (1228, 66586), (1352, 60479), (1576, 51883), (2456, 33293), (2561, 31928), (3991, 20488), (5122, 15964), (7982, 10244)]