131251260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:236

約数の個数: 192

約数和(自身を含む): 439971840

約数和(自身を除く): 308720580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 47, 60, 61, 70, 84, 94, 105, 109, 122, 140, 141, 183, 188, 210, 218, 235, 244, 282, 305, 327, 329, 366, 420, 427, 436, 470, 545, 564, 610, 654, 658, 705, 732, 763, 854, 915, 940, 987, 1090, 1220, 1281, 1308, 1316, 1410, 1526, 1635, 1645, 1708, 1830, 1974, 2135, 2180, 2289, 2562, 2820, 2867, 3052, 3270, 3290, 3660, 3815, 3948, 4270, 4578, 4935, 5123, 5124, 5734, 6405, 6540, 6580, 6649, 7630, 8540, 8601, 9156, 9870, 10246, 11445, 11468, 12810, 13298, 14335, 15260, 15369, 17202, 19740, 19947, 20069, 20492, 22890, 25615, 25620, 26596, 28670, 30738, 33245, 34404, 35861, 39894, 40138, 43005, 45780, 46543, 51230, 57340, 60207, 61476, 66490, 71722, 76845, 79788, 80276, 86010, 93086, 99735, 100345, 102460, 107583, 120414, 132980, 139629, 143444, 153690, 172020, 179305, 186172, 199470, 200690, 215166, 232715, 240828, 279258, 301035, 307380, 312503, 358610, 398940, 401380, 430332, 465430, 537915, 558516, 602070, 625006, 698145, 717220, 930860, 937509, 1075830, 1204140, 1250012, 1396290, 1562515, 1875018, 2151660, 2187521, 2792580, 3125030, 3750036, 4375042, 4687545, 6250060, 6562563, 8750084, 9375090, 10937605, 13125126, 18750180, 21875210, 26250252, 32812815, 43750420, 65625630, 131251260]

約数ペア:

[(1, 131251260), (2, 65625630), (3, 43750420), (4, 32812815), (5, 26250252), (6, 21875210), (7, 18750180), (10, 13125126), (12, 10937605), (14, 9375090), (15, 8750084), (20, 6562563), (21, 6250060), (28, 4687545), (30, 4375042), (35, 3750036), (42, 3125030), (47, 2792580), (60, 2187521), (61, 2151660), (70, 1875018), (84, 1562515), (94, 1396290), (105, 1250012), (109, 1204140), (122, 1075830), (140, 937509), (141, 930860), (183, 717220), (188, 698145), (210, 625006), (218, 602070), (235, 558516), (244, 537915), (282, 465430), (305, 430332), (327, 401380), (329, 398940), (366, 358610), (420, 312503), (427, 307380), (436, 301035), (470, 279258), (545, 240828), (564, 232715), (610, 215166), (654, 200690), (658, 199470), (705, 186172), (732, 179305), (763, 172020), (854, 153690), (915, 143444), (940, 139629), (987, 132980), (1090, 120414), (1220, 107583), (1281, 102460), (1308, 100345), (1316, 99735), (1410, 93086), (1526, 86010), (1635, 80276), (1645, 79788), (1708, 76845), (1830, 71722), (1974, 66490), (2135, 61476), (2180, 60207), (2289, 57340), (2562, 51230), (2820, 46543), (2867, 45780), (3052, 43005), (3270, 40138), (3290, 39894), (3660, 35861), (3815, 34404), (3948, 33245), (4270, 30738), (4578, 28670), (4935, 26596), (5123, 25620), (5124, 25615), (5734, 22890), (6405, 20492), (6540, 20069), (6580, 19947), (6649, 19740), (7630, 17202), (8540, 15369), (8601, 15260), (9156, 14335), (9870, 13298), (10246, 12810), (11445, 11468)]