251981520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^3\times {\mathrm{3061}}^1$

素因数の和:3098

約数の個数: 160

約数和(自身を含む): 911251200

約数和(自身を除く): 659269680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 245, 280, 294, 336, 343, 392, 420, 490, 560, 588, 686, 735, 784, 840, 980, 1029, 1176, 1372, 1470, 1680, 1715, 1960, 2058, 2352, 2744, 2940, 3061, 3430, 3920, 4116, 5145, 5488, 5880, 6122, 6860, 8232, 9183, 10290, 11760, 12244, 13720, 15305, 16464, 18366, 20580, 21427, 24488, 27440, 30610, 36732, 41160, 42854, 45915, 48976, 61220, 64281, 73464, 82320, 85708, 91830, 107135, 122440, 128562, 146928, 149989, 171416, 183660, 214270, 244880, 257124, 299978, 321405, 342832, 367320, 428540, 449967, 514248, 599956, 642810, 734640, 749945, 857080, 899934, 1028496, 1049923, 1199912, 1285620, 1499890, 1714160, 1799868, 2099846, 2249835, 2399824, 2571240, 2999780, 3149769, 3599736, 4199692, 4499670, 5142480, 5249615, 5999560, 6299538, 7199472, 8399384, 8999340, 10499230, 11999120, 12599076, 15748845, 16798768, 17998680, 20998460, 25198152, 31497690, 35997360, 41996920, 50396304, 62995380, 83993840, 125990760, 251981520]

約数ペア:

[(1, 251981520), (2, 125990760), (3, 83993840), (4, 62995380), (5, 50396304), (6, 41996920), (7, 35997360), (8, 31497690), (10, 25198152), (12, 20998460), (14, 17998680), (15, 16798768), (16, 15748845), (20, 12599076), (21, 11999120), (24, 10499230), (28, 8999340), (30, 8399384), (35, 7199472), (40, 6299538), (42, 5999560), (48, 5249615), (49, 5142480), (56, 4499670), (60, 4199692), (70, 3599736), (80, 3149769), (84, 2999780), (98, 2571240), (105, 2399824), (112, 2249835), (120, 2099846), (140, 1799868), (147, 1714160), (168, 1499890), (196, 1285620), (210, 1199912), (240, 1049923), (245, 1028496), (280, 899934), (294, 857080), (336, 749945), (343, 734640), (392, 642810), (420, 599956), (490, 514248), (560, 449967), (588, 428540), (686, 367320), (735, 342832), (784, 321405), (840, 299978), (980, 257124), (1029, 244880), (1176, 214270), (1372, 183660), (1470, 171416), (1680, 149989), (1715, 146928), (1960, 128562), (2058, 122440), (2352, 107135), (2744, 91830), (2940, 85708), (3061, 82320), (3430, 73464), (3920, 64281), (4116, 61220), (5145, 48976), (5488, 45915), (5880, 42854), (6122, 41160), (6860, 36732), (8232, 30610), (9183, 27440), (10290, 24488), (11760, 21427), (12244, 20580), (13720, 18366), (15305, 16464)]