12191220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{761}}^1$

素因数の和:865

約数の個数: 72

約数和(自身を含む): 37444680

約数和(自身を除く): 25253460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 761, 801, 890, 1068, 1335, 1522, 1602, 1780, 2283, 2670, 3044, 3204, 3805, 4005, 4566, 5340, 6849, 7610, 8010, 9132, 11415, 13698, 15220, 16020, 22830, 27396, 34245, 45660, 67729, 68490, 135458, 136980, 203187, 270916, 338645, 406374, 609561, 677290, 812748, 1015935, 1219122, 1354580, 2031870, 2438244, 3047805, 4063740, 6095610, 12191220]

約数ペア:

[(1, 12191220), (2, 6095610), (3, 4063740), (4, 3047805), (5, 2438244), (6, 2031870), (9, 1354580), (10, 1219122), (12, 1015935), (15, 812748), (18, 677290), (20, 609561), (30, 406374), (36, 338645), (45, 270916), (60, 203187), (89, 136980), (90, 135458), (178, 68490), (180, 67729), (267, 45660), (356, 34245), (445, 27396), (534, 22830), (761, 16020), (801, 15220), (890, 13698), (1068, 11415), (1335, 9132), (1522, 8010), (1602, 7610), (1780, 6849), (2283, 5340), (2670, 4566), (3044, 4005), (3204, 3805)]