721675656

素因数分解:

$2^3\times 3^4\times {\mathrm{13}}^1\times {\mathrm{85669}}^1$

素因数の和:85700

約数の個数: 80

約数和(自身を含む): 2176874700

約数和(自身を除く): 1455199044

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 81, 104, 108, 117, 156, 162, 216, 234, 312, 324, 351, 468, 648, 702, 936, 1053, 1404, 2106, 2808, 4212, 8424, 85669, 171338, 257007, 342676, 514014, 685352, 771021, 1028028, 1113697, 1542042, 2056056, 2227394, 2313063, 3084084, 3341091, 4454788, 4626126, 6168168, 6682182, 6939189, 8909576, 9252252, 10023273, 13364364, 13878378, 18504504, 20046546, 26728728, 27756756, 30069819, 40093092, 55513512, 60139638, 80186184, 90209457, 120279276, 180418914, 240558552, 360837828, 721675656]

約数ペア:

[(1, 721675656), (2, 360837828), (3, 240558552), (4, 180418914), (6, 120279276), (8, 90209457), (9, 80186184), (12, 60139638), (13, 55513512), (18, 40093092), (24, 30069819), (26, 27756756), (27, 26728728), (36, 20046546), (39, 18504504), (52, 13878378), (54, 13364364), (72, 10023273), (78, 9252252), (81, 8909576), (104, 6939189), (108, 6682182), (117, 6168168), (156, 4626126), (162, 4454788), (216, 3341091), (234, 3084084), (312, 2313063), (324, 2227394), (351, 2056056), (468, 1542042), (648, 1113697), (702, 1028028), (936, 771021), (1053, 685352), (1404, 514014), (2106, 342676), (2808, 257007), (4212, 171338), (8424, 85669)]