257732020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:230

約数の個数: 192

約数和(自身を含む): 715309056

約数和(自身を除く): 457577036

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 35, 46, 47, 52, 65, 70, 91, 92, 94, 115, 130, 131, 140, 161, 182, 188, 230, 235, 260, 262, 299, 322, 329, 364, 455, 460, 470, 524, 598, 611, 644, 655, 658, 805, 910, 917, 940, 1081, 1196, 1222, 1310, 1316, 1495, 1610, 1645, 1703, 1820, 1834, 2093, 2162, 2444, 2620, 2990, 3013, 3055, 3220, 3290, 3406, 3668, 4186, 4277, 4324, 4585, 5405, 5980, 6026, 6110, 6157, 6580, 6812, 7567, 8372, 8515, 8554, 9170, 10465, 10810, 11921, 12052, 12220, 12314, 14053, 15065, 15134, 17030, 17108, 18340, 20930, 21091, 21385, 21620, 23842, 24628, 28106, 30130, 30268, 30785, 34060, 37835, 39169, 41860, 42182, 42770, 43099, 47684, 56212, 59605, 60260, 61570, 70265, 75670, 78338, 80041, 84364, 85540, 86198, 98371, 105455, 119210, 123140, 140530, 141611, 151340, 156676, 160082, 172396, 195845, 196742, 210910, 215495, 238420, 274183, 281060, 283222, 320164, 391690, 393484, 400205, 421820, 430990, 491855, 548366, 560287, 566444, 708055, 783380, 800410, 861980, 983710, 991277, 1096732, 1120574, 1370915, 1416110, 1600820, 1840943, 1967420, 1982554, 2241148, 2741830, 2801435, 2832220, 3681886, 3965108, 4956385, 5483660, 5602870, 7363772, 9204715, 9912770, 11205740, 12886601, 18409430, 19825540, 25773202, 36818860, 51546404, 64433005, 128866010, 257732020]

約数ペア:

[(1, 257732020), (2, 128866010), (4, 64433005), (5, 51546404), (7, 36818860), (10, 25773202), (13, 19825540), (14, 18409430), (20, 12886601), (23, 11205740), (26, 9912770), (28, 9204715), (35, 7363772), (46, 5602870), (47, 5483660), (52, 4956385), (65, 3965108), (70, 3681886), (91, 2832220), (92, 2801435), (94, 2741830), (115, 2241148), (130, 1982554), (131, 1967420), (140, 1840943), (161, 1600820), (182, 1416110), (188, 1370915), (230, 1120574), (235, 1096732), (260, 991277), (262, 983710), (299, 861980), (322, 800410), (329, 783380), (364, 708055), (455, 566444), (460, 560287), (470, 548366), (524, 491855), (598, 430990), (611, 421820), (644, 400205), (655, 393484), (658, 391690), (805, 320164), (910, 283222), (917, 281060), (940, 274183), (1081, 238420), (1196, 215495), (1222, 210910), (1310, 196742), (1316, 195845), (1495, 172396), (1610, 160082), (1645, 156676), (1703, 151340), (1820, 141611), (1834, 140530), (2093, 123140), (2162, 119210), (2444, 105455), (2620, 98371), (2990, 86198), (3013, 85540), (3055, 84364), (3220, 80041), (3290, 78338), (3406, 75670), (3668, 70265), (4186, 61570), (4277, 60260), (4324, 59605), (4585, 56212), (5405, 47684), (5980, 43099), (6026, 42770), (6110, 42182), (6157, 41860), (6580, 39169), (6812, 37835), (7567, 34060), (8372, 30785), (8515, 30268), (8554, 30130), (9170, 28106), (10465, 24628), (10810, 23842), (11921, 21620), (12052, 21385), (12220, 21091), (12314, 20930), (14053, 18340), (15065, 17108), (15134, 17030)]