281404760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{797}}^1$

素因数の和:925

約数の個数: 128

約数和(自身を含む): 788296320

約数和(自身を除く): 506891560

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 97, 104, 130, 140, 182, 194, 260, 280, 364, 388, 455, 485, 520, 679, 728, 776, 797, 910, 970, 1261, 1358, 1594, 1820, 1940, 2522, 2716, 3188, 3395, 3640, 3880, 3985, 5044, 5432, 5579, 6305, 6376, 6790, 7970, 8827, 10088, 10361, 11158, 12610, 13580, 15940, 17654, 20722, 22316, 25220, 27160, 27895, 31880, 35308, 41444, 44135, 44632, 50440, 51805, 55790, 70616, 72527, 77309, 82888, 88270, 103610, 111580, 145054, 154618, 176540, 207220, 223160, 290108, 309236, 353080, 362635, 386545, 414440, 541163, 580216, 618472, 725270, 773090, 1005017, 1082326, 1450540, 1546180, 2010034, 2164652, 2705815, 2901080, 3092360, 4020068, 4329304, 5025085, 5411630, 7035119, 8040136, 10050170, 10823260, 14070238, 20100340, 21646520, 28140476, 35175595, 40200680, 56280952, 70351190, 140702380, 281404760]

約数ペア:

[(1, 281404760), (2, 140702380), (4, 70351190), (5, 56280952), (7, 40200680), (8, 35175595), (10, 28140476), (13, 21646520), (14, 20100340), (20, 14070238), (26, 10823260), (28, 10050170), (35, 8040136), (40, 7035119), (52, 5411630), (56, 5025085), (65, 4329304), (70, 4020068), (91, 3092360), (97, 2901080), (104, 2705815), (130, 2164652), (140, 2010034), (182, 1546180), (194, 1450540), (260, 1082326), (280, 1005017), (364, 773090), (388, 725270), (455, 618472), (485, 580216), (520, 541163), (679, 414440), (728, 386545), (776, 362635), (797, 353080), (910, 309236), (970, 290108), (1261, 223160), (1358, 207220), (1594, 176540), (1820, 154618), (1940, 145054), (2522, 111580), (2716, 103610), (3188, 88270), (3395, 82888), (3640, 77309), (3880, 72527), (3985, 70616), (5044, 55790), (5432, 51805), (5579, 50440), (6305, 44632), (6376, 44135), (6790, 41444), (7970, 35308), (8827, 31880), (10088, 27895), (10361, 27160), (11158, 25220), (12610, 22316), (13580, 20722), (15940, 17654)]