251390160

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1609}}^1$

素因数の和:1666

約数の個数: 240

約数和(自身を含む): 996602880

約数和(自身を除く): 745212720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 48, 56, 60, 62, 63, 70, 72, 80, 84, 90, 93, 105, 112, 120, 124, 126, 140, 144, 155, 168, 180, 186, 210, 217, 240, 248, 252, 279, 280, 310, 315, 336, 360, 372, 420, 434, 465, 496, 504, 558, 560, 620, 630, 651, 720, 744, 840, 868, 930, 1008, 1085, 1116, 1240, 1260, 1302, 1395, 1488, 1609, 1680, 1736, 1860, 1953, 2170, 2232, 2480, 2520, 2604, 2790, 3218, 3255, 3472, 3720, 3906, 4340, 4464, 4827, 5040, 5208, 5580, 6436, 6510, 7440, 7812, 8045, 8680, 9654, 9765, 10416, 11160, 11263, 12872, 13020, 14481, 15624, 16090, 17360, 19308, 19530, 22320, 22526, 24135, 25744, 26040, 28962, 31248, 32180, 33789, 38616, 39060, 45052, 48270, 49879, 52080, 56315, 57924, 64360, 67578, 72405, 77232, 78120, 90104, 96540, 99758, 101367, 112630, 115848, 128720, 135156, 144810, 149637, 156240, 168945, 180208, 193080, 199516, 202734, 225260, 231696, 249395, 270312, 289620, 299274, 337890, 349153, 386160, 399032, 405468, 448911, 450520, 498790, 506835, 540624, 579240, 598548, 675780, 698306, 748185, 798064, 810936, 897822, 901040, 997580, 1013670, 1047459, 1158480, 1197096, 1351560, 1396612, 1496370, 1621872, 1745765, 1795644, 1995160, 2027340, 2094918, 2244555, 2394192, 2703120, 2793224, 2992740, 3142377, 3491530, 3591288, 3990320, 4054680, 4189836, 4489110, 5237295, 5586448, 5985480, 6284754, 6983060, 7182576, 8109360, 8379672, 8978220, 10474590, 11970960, 12569508, 13966120, 15711885, 16759344, 17956440, 20949180, 25139016, 27932240, 31423770, 35912880, 41898360, 50278032, 62847540, 83796720, 125695080, 251390160]

約数ペア:

[(1, 251390160), (2, 125695080), (3, 83796720), (4, 62847540), (5, 50278032), (6, 41898360), (7, 35912880), (8, 31423770), (9, 27932240), (10, 25139016), (12, 20949180), (14, 17956440), (15, 16759344), (16, 15711885), (18, 13966120), (20, 12569508), (21, 11970960), (24, 10474590), (28, 8978220), (30, 8379672), (31, 8109360), (35, 7182576), (36, 6983060), (40, 6284754), (42, 5985480), (45, 5586448), (48, 5237295), (56, 4489110), (60, 4189836), (62, 4054680), (63, 3990320), (70, 3591288), (72, 3491530), (80, 3142377), (84, 2992740), (90, 2793224), (93, 2703120), (105, 2394192), (112, 2244555), (120, 2094918), (124, 2027340), (126, 1995160), (140, 1795644), (144, 1745765), (155, 1621872), (168, 1496370), (180, 1396612), (186, 1351560), (210, 1197096), (217, 1158480), (240, 1047459), (248, 1013670), (252, 997580), (279, 901040), (280, 897822), (310, 810936), (315, 798064), (336, 748185), (360, 698306), (372, 675780), (420, 598548), (434, 579240), (465, 540624), (496, 506835), (504, 498790), (558, 450520), (560, 448911), (620, 405468), (630, 399032), (651, 386160), (720, 349153), (744, 337890), (840, 299274), (868, 289620), (930, 270312), (1008, 249395), (1085, 231696), (1116, 225260), (1240, 202734), (1260, 199516), (1302, 193080), (1395, 180208), (1488, 168945), (1609, 156240), (1680, 149637), (1736, 144810), (1860, 135156), (1953, 128720), (2170, 115848), (2232, 112630), (2480, 101367), (2520, 99758), (2604, 96540), (2790, 90104), (3218, 78120), (3255, 77232), (3472, 72405), (3720, 67578), (3906, 64360), (4340, 57924), (4464, 56315), (4827, 52080), (5040, 49879), (5208, 48270), (5580, 45052), (6436, 39060), (6510, 38616), (7440, 33789), (7812, 32180), (8045, 31248), (8680, 28962), (9654, 26040), (9765, 25744), (10416, 24135), (11160, 22526), (11263, 22320), (12872, 19530), (13020, 19308), (14481, 17360), (15624, 16090)]