31507740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15913}}^1$

素因数の和:15939

約数の個数: 72

約数和(自身を含む): 104268528

約数和(自身を除く): 72760788

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 15913, 31826, 47739, 63652, 79565, 95478, 143217, 159130, 175043, 190956, 238695, 286434, 318260, 350086, 477390, 525129, 572868, 700172, 716085, 875215, 954780, 1050258, 1432170, 1575387, 1750430, 2100516, 2625645, 2864340, 3150774, 3500860, 5251290, 6301548, 7876935, 10502580, 15753870, 31507740]

約数ペア:

[(1, 31507740), (2, 15753870), (3, 10502580), (4, 7876935), (5, 6301548), (6, 5251290), (9, 3500860), (10, 3150774), (11, 2864340), (12, 2625645), (15, 2100516), (18, 1750430), (20, 1575387), (22, 1432170), (30, 1050258), (33, 954780), (36, 875215), (44, 716085), (45, 700172), (55, 572868), (60, 525129), (66, 477390), (90, 350086), (99, 318260), (110, 286434), (132, 238695), (165, 190956), (180, 175043), (198, 159130), (220, 143217), (330, 95478), (396, 79565), (495, 63652), (660, 47739), (990, 31826), (1980, 15913)]