256368840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1381}}^1$

素因数の和:1432

約数の個数: 256

約数和(自身を含む): 1003000320

約数和(自身を除く): 746631480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 17, 20, 21, 24, 26, 28, 30, 34, 35, 39, 40, 42, 51, 52, 56, 60, 65, 68, 70, 78, 84, 85, 91, 102, 104, 105, 119, 120, 130, 136, 140, 156, 168, 170, 182, 195, 204, 210, 221, 238, 255, 260, 273, 280, 312, 340, 357, 364, 390, 408, 420, 442, 455, 476, 510, 520, 546, 595, 663, 680, 714, 728, 780, 840, 884, 910, 952, 1020, 1092, 1105, 1190, 1326, 1365, 1381, 1428, 1547, 1560, 1768, 1785, 1820, 2040, 2184, 2210, 2380, 2652, 2730, 2762, 2856, 3094, 3315, 3570, 3640, 4143, 4420, 4641, 4760, 5304, 5460, 5524, 6188, 6630, 6905, 7140, 7735, 8286, 8840, 9282, 9667, 10920, 11048, 12376, 13260, 13810, 14280, 15470, 16572, 17953, 18564, 19334, 20715, 23205, 23477, 26520, 27620, 29001, 30940, 33144, 35906, 37128, 38668, 41430, 46410, 46954, 48335, 53859, 55240, 58002, 61880, 70431, 71812, 77336, 82860, 89765, 92820, 93908, 96670, 107718, 116004, 117385, 125671, 140862, 143624, 145005, 164339, 165720, 179530, 185640, 187816, 193340, 215436, 232008, 234770, 251342, 269295, 281724, 290010, 305201, 328678, 352155, 359060, 377013, 386680, 430872, 469540, 493017, 502684, 538590, 563448, 580020, 610402, 628355, 657356, 704310, 718120, 754026, 821695, 915603, 939080, 986034, 1005368, 1077180, 1160040, 1220804, 1256710, 1314712, 1408620, 1508052, 1526005, 1643390, 1831206, 1885065, 1972068, 2136407, 2154360, 2441608, 2465085, 2513420, 2817240, 3016104, 3052010, 3286780, 3662412, 3770130, 3944136, 4272814, 4578015, 4930170, 5026840, 6104020, 6409221, 6573560, 7324824, 7540260, 8545628, 9156030, 9860340, 10682035, 12208040, 12818442, 15080520, 17091256, 18312060, 19720680, 21364070, 25636884, 32046105, 36624120, 42728140, 51273768, 64092210, 85456280, 128184420, 256368840]

約数ペア:

[(1, 256368840), (2, 128184420), (3, 85456280), (4, 64092210), (5, 51273768), (6, 42728140), (7, 36624120), (8, 32046105), (10, 25636884), (12, 21364070), (13, 19720680), (14, 18312060), (15, 17091256), (17, 15080520), (20, 12818442), (21, 12208040), (24, 10682035), (26, 9860340), (28, 9156030), (30, 8545628), (34, 7540260), (35, 7324824), (39, 6573560), (40, 6409221), (42, 6104020), (51, 5026840), (52, 4930170), (56, 4578015), (60, 4272814), (65, 3944136), (68, 3770130), (70, 3662412), (78, 3286780), (84, 3052010), (85, 3016104), (91, 2817240), (102, 2513420), (104, 2465085), (105, 2441608), (119, 2154360), (120, 2136407), (130, 1972068), (136, 1885065), (140, 1831206), (156, 1643390), (168, 1526005), (170, 1508052), (182, 1408620), (195, 1314712), (204, 1256710), (210, 1220804), (221, 1160040), (238, 1077180), (255, 1005368), (260, 986034), (273, 939080), (280, 915603), (312, 821695), (340, 754026), (357, 718120), (364, 704310), (390, 657356), (408, 628355), (420, 610402), (442, 580020), (455, 563448), (476, 538590), (510, 502684), (520, 493017), (546, 469540), (595, 430872), (663, 386680), (680, 377013), (714, 359060), (728, 352155), (780, 328678), (840, 305201), (884, 290010), (910, 281724), (952, 269295), (1020, 251342), (1092, 234770), (1105, 232008), (1190, 215436), (1326, 193340), (1365, 187816), (1381, 185640), (1428, 179530), (1547, 165720), (1560, 164339), (1768, 145005), (1785, 143624), (1820, 140862), (2040, 125671), (2184, 117385), (2210, 116004), (2380, 107718), (2652, 96670), (2730, 93908), (2762, 92820), (2856, 89765), (3094, 82860), (3315, 77336), (3570, 71812), (3640, 70431), (4143, 61880), (4420, 58002), (4641, 55240), (4760, 53859), (5304, 48335), (5460, 46954), (5524, 46410), (6188, 41430), (6630, 38668), (6905, 37128), (7140, 35906), (7735, 33144), (8286, 30940), (8840, 29001), (9282, 27620), (9667, 26520), (10920, 23477), (11048, 23205), (12376, 20715), (13260, 19334), (13810, 18564), (14280, 17953), (15470, 16572)]