20657592

素因数分解:

$2^3\times 3^4\times {\mathrm{71}}^1\times {\mathrm{449}}^1$

素因数の和:538

約数の個数: 80

約数和(自身を含む): 58806000

約数和(自身を除く): 38148408

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 71, 72, 81, 108, 142, 162, 213, 216, 284, 324, 426, 449, 568, 639, 648, 852, 898, 1278, 1347, 1704, 1796, 1917, 2556, 2694, 3592, 3834, 4041, 5112, 5388, 5751, 7668, 8082, 10776, 11502, 12123, 15336, 16164, 23004, 24246, 31879, 32328, 36369, 46008, 48492, 63758, 72738, 95637, 96984, 127516, 145476, 191274, 255032, 286911, 290952, 382548, 573822, 765096, 860733, 1147644, 1721466, 2295288, 2582199, 3442932, 5164398, 6885864, 10328796, 20657592]

約数ペア:

[(1, 20657592), (2, 10328796), (3, 6885864), (4, 5164398), (6, 3442932), (8, 2582199), (9, 2295288), (12, 1721466), (18, 1147644), (24, 860733), (27, 765096), (36, 573822), (54, 382548), (71, 290952), (72, 286911), (81, 255032), (108, 191274), (142, 145476), (162, 127516), (213, 96984), (216, 95637), (284, 72738), (324, 63758), (426, 48492), (449, 46008), (568, 36369), (639, 32328), (648, 31879), (852, 24246), (898, 23004), (1278, 16164), (1347, 15336), (1704, 12123), (1796, 11502), (1917, 10776), (2556, 8082), (2694, 7668), (3592, 5751), (3834, 5388), (4041, 5112)]