20178072

素因数分解:

$2^3\times 3^4\times {\mathrm{31139}}^1$

素因数の和:31157

約数の個数: 40

約数和(自身を含む): 56519100

約数和(自身を除く): 36341028

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 31139, 62278, 93417, 124556, 186834, 249112, 280251, 373668, 560502, 747336, 840753, 1121004, 1681506, 2242008, 2522259, 3363012, 5044518, 6726024, 10089036, 20178072]

約数ペア:

[(1, 20178072), (2, 10089036), (3, 6726024), (4, 5044518), (6, 3363012), (8, 2522259), (9, 2242008), (12, 1681506), (18, 1121004), (24, 840753), (27, 747336), (36, 560502), (54, 373668), (72, 280251), (81, 249112), (108, 186834), (162, 124556), (216, 93417), (324, 62278), (648, 31139)]