81742590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31319}}^1$

素因数の和:31361

約数の個数: 48

約数和(自身を含む): 219866400

約数和(自身を除く): 138123810

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 87, 90, 145, 174, 261, 290, 435, 522, 870, 1305, 2610, 31319, 62638, 93957, 156595, 187914, 281871, 313190, 469785, 563742, 908251, 939570, 1409355, 1816502, 2724753, 2818710, 4541255, 5449506, 8174259, 9082510, 13623765, 16348518, 27247530, 40871295, 81742590]

約数ペア:

[(1, 81742590), (2, 40871295), (3, 27247530), (5, 16348518), (6, 13623765), (9, 9082510), (10, 8174259), (15, 5449506), (18, 4541255), (29, 2818710), (30, 2724753), (45, 1816502), (58, 1409355), (87, 939570), (90, 908251), (145, 563742), (174, 469785), (261, 313190), (290, 281871), (435, 187914), (522, 156595), (870, 93957), (1305, 62638), (2610, 31319)]