256745580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{797}}^1$

素因数の和:888

約数の個数: 192

約数和(自身を含む): 900910080

約数和(自身を除く): 644164500

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 59, 60, 65, 70, 78, 84, 91, 105, 118, 130, 140, 156, 177, 182, 195, 210, 236, 260, 273, 295, 354, 364, 390, 413, 420, 455, 546, 590, 708, 767, 780, 797, 826, 885, 910, 1092, 1180, 1239, 1365, 1534, 1594, 1652, 1770, 1820, 2065, 2301, 2391, 2478, 2730, 3068, 3188, 3540, 3835, 3985, 4130, 4602, 4782, 4956, 5369, 5460, 5579, 6195, 7670, 7970, 8260, 9204, 9564, 10361, 10738, 11158, 11505, 11955, 12390, 15340, 15940, 16107, 16737, 20722, 21476, 22316, 23010, 23910, 24780, 26845, 27895, 31083, 32214, 33474, 41444, 46020, 47023, 47820, 51805, 53690, 55790, 62166, 64428, 66948, 72527, 80535, 83685, 94046, 103610, 107380, 111580, 124332, 141069, 145054, 155415, 161070, 167370, 188092, 207220, 217581, 235115, 282138, 290108, 310830, 322140, 329161, 334740, 362635, 435162, 470230, 564276, 611299, 621660, 658322, 705345, 725270, 870324, 940460, 987483, 1087905, 1222598, 1316644, 1410690, 1450540, 1645805, 1833897, 1974966, 2175810, 2445196, 2821380, 3056495, 3291610, 3667794, 3949932, 4279093, 4351620, 4937415, 6112990, 6583220, 7335588, 8558186, 9169485, 9874830, 12225980, 12837279, 17116372, 18338970, 19749660, 21395465, 25674558, 36677940, 42790930, 51349116, 64186395, 85581860, 128372790, 256745580]

約数ペア:

[(1, 256745580), (2, 128372790), (3, 85581860), (4, 64186395), (5, 51349116), (6, 42790930), (7, 36677940), (10, 25674558), (12, 21395465), (13, 19749660), (14, 18338970), (15, 17116372), (20, 12837279), (21, 12225980), (26, 9874830), (28, 9169485), (30, 8558186), (35, 7335588), (39, 6583220), (42, 6112990), (52, 4937415), (59, 4351620), (60, 4279093), (65, 3949932), (70, 3667794), (78, 3291610), (84, 3056495), (91, 2821380), (105, 2445196), (118, 2175810), (130, 1974966), (140, 1833897), (156, 1645805), (177, 1450540), (182, 1410690), (195, 1316644), (210, 1222598), (236, 1087905), (260, 987483), (273, 940460), (295, 870324), (354, 725270), (364, 705345), (390, 658322), (413, 621660), (420, 611299), (455, 564276), (546, 470230), (590, 435162), (708, 362635), (767, 334740), (780, 329161), (797, 322140), (826, 310830), (885, 290108), (910, 282138), (1092, 235115), (1180, 217581), (1239, 207220), (1365, 188092), (1534, 167370), (1594, 161070), (1652, 155415), (1770, 145054), (1820, 141069), (2065, 124332), (2301, 111580), (2391, 107380), (2478, 103610), (2730, 94046), (3068, 83685), (3188, 80535), (3540, 72527), (3835, 66948), (3985, 64428), (4130, 62166), (4602, 55790), (4782, 53690), (4956, 51805), (5369, 47820), (5460, 47023), (5579, 46020), (6195, 41444), (7670, 33474), (7970, 32214), (8260, 31083), (9204, 27895), (9564, 26845), (10361, 24780), (10738, 23910), (11158, 23010), (11505, 22316), (11955, 21476), (12390, 20722), (15340, 16737), (15940, 16107)]