257398680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:434

約数の個数: 256

約数和(自身を含む): 976665600

約数和(自身を除く): 719266920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 89, 105, 110, 120, 132, 140, 154, 165, 168, 178, 210, 220, 231, 264, 267, 280, 308, 313, 330, 356, 385, 420, 440, 445, 462, 534, 616, 623, 626, 660, 712, 770, 840, 890, 924, 939, 979, 1068, 1155, 1246, 1252, 1320, 1335, 1540, 1565, 1780, 1848, 1869, 1878, 1958, 2136, 2191, 2310, 2492, 2504, 2670, 2937, 3080, 3115, 3130, 3443, 3560, 3738, 3756, 3916, 4382, 4620, 4695, 4895, 4984, 5340, 5874, 6230, 6260, 6573, 6853, 6886, 7476, 7512, 7832, 8764, 9240, 9345, 9390, 9790, 10329, 10680, 10955, 11748, 12460, 12520, 13146, 13706, 13772, 14685, 14952, 17215, 17528, 18690, 18780, 19580, 20559, 20658, 21910, 23496, 24101, 24920, 26292, 27412, 27544, 27857, 29370, 32865, 34265, 34430, 37380, 37560, 39160, 41118, 41316, 43820, 48202, 51645, 52584, 54824, 55714, 58740, 65730, 68530, 68860, 72303, 74760, 82236, 82632, 83571, 87640, 96404, 102795, 103290, 111428, 117480, 120505, 131460, 137060, 137720, 139285, 144606, 164472, 167142, 192808, 194999, 205590, 206580, 222856, 241010, 262920, 274120, 278570, 289212, 306427, 334284, 361515, 389998, 411180, 413160, 417855, 482020, 557140, 578424, 584997, 612854, 668568, 723030, 779996, 822360, 835710, 919281, 964040, 974995, 1114280, 1169994, 1225708, 1446060, 1532135, 1559992, 1671420, 1838562, 1949990, 2144989, 2339988, 2451416, 2892120, 2924985, 3064270, 3342840, 3677124, 3899980, 4289978, 4596405, 4679976, 5849970, 6128540, 6434967, 7354248, 7799960, 8579956, 9192810, 10724945, 11699940, 12257080, 12869934, 17159912, 18385620, 21449890, 23399880, 25739868, 32174835, 36771240, 42899780, 51479736, 64349670, 85799560, 128699340, 257398680]

約数ペア:

[(1, 257398680), (2, 128699340), (3, 85799560), (4, 64349670), (5, 51479736), (6, 42899780), (7, 36771240), (8, 32174835), (10, 25739868), (11, 23399880), (12, 21449890), (14, 18385620), (15, 17159912), (20, 12869934), (21, 12257080), (22, 11699940), (24, 10724945), (28, 9192810), (30, 8579956), (33, 7799960), (35, 7354248), (40, 6434967), (42, 6128540), (44, 5849970), (55, 4679976), (56, 4596405), (60, 4289978), (66, 3899980), (70, 3677124), (77, 3342840), (84, 3064270), (88, 2924985), (89, 2892120), (105, 2451416), (110, 2339988), (120, 2144989), (132, 1949990), (140, 1838562), (154, 1671420), (165, 1559992), (168, 1532135), (178, 1446060), (210, 1225708), (220, 1169994), (231, 1114280), (264, 974995), (267, 964040), (280, 919281), (308, 835710), (313, 822360), (330, 779996), (356, 723030), (385, 668568), (420, 612854), (440, 584997), (445, 578424), (462, 557140), (534, 482020), (616, 417855), (623, 413160), (626, 411180), (660, 389998), (712, 361515), (770, 334284), (840, 306427), (890, 289212), (924, 278570), (939, 274120), (979, 262920), (1068, 241010), (1155, 222856), (1246, 206580), (1252, 205590), (1320, 194999), (1335, 192808), (1540, 167142), (1565, 164472), (1780, 144606), (1848, 139285), (1869, 137720), (1878, 137060), (1958, 131460), (2136, 120505), (2191, 117480), (2310, 111428), (2492, 103290), (2504, 102795), (2670, 96404), (2937, 87640), (3080, 83571), (3115, 82632), (3130, 82236), (3443, 74760), (3560, 72303), (3738, 68860), (3756, 68530), (3916, 65730), (4382, 58740), (4620, 55714), (4695, 54824), (4895, 52584), (4984, 51645), (5340, 48202), (5874, 43820), (6230, 41316), (6260, 41118), (6573, 39160), (6853, 37560), (6886, 37380), (7476, 34430), (7512, 34265), (7832, 32865), (8764, 29370), (9240, 27857), (9345, 27544), (9390, 27412), (9790, 26292), (10329, 24920), (10680, 24101), (10955, 23496), (11748, 21910), (12460, 20658), (12520, 20559), (13146, 19580), (13706, 18780), (13772, 18690), (14685, 17528), (14952, 17215)]