646727760

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{42773}}^1$

素因数の和:42802

約数の個数: 160

約数和(自身を含む): 2545908480

約数和(自身を除く): 1899180720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120, 42773, 85546, 128319, 171092, 213865, 256638, 299411, 342184, 384957, 427730, 513276, 598822, 641595, 684368, 769914, 855460, 898233, 1026552, 1154871, 1197644, 1283190, 1497055, 1539828, 1710920, 1796466, 1924785, 2053104, 2309742, 2395288, 2566380, 2694699, 2994110, 3079656, 3421840, 3592932, 3849570, 4491165, 4619484, 4790576, 5132760, 5389398, 5774355, 5988220, 6159312, 7185864, 7699140, 8084097, 8982330, 9238968, 10265520, 10778796, 11548710, 11976440, 13473495, 14371728, 15398280, 16168194, 17964660, 18477936, 21557592, 23097420, 23952880, 26946990, 30796560, 32336388, 35929320, 40420485, 43115184, 46194840, 53893980, 64672776, 71858640, 80840970, 92389680, 107787960, 129345552, 161681940, 215575920, 323363880, 646727760]

約数ペア:

[(1, 646727760), (2, 323363880), (3, 215575920), (4, 161681940), (5, 129345552), (6, 107787960), (7, 92389680), (8, 80840970), (9, 71858640), (10, 64672776), (12, 53893980), (14, 46194840), (15, 43115184), (16, 40420485), (18, 35929320), (20, 32336388), (21, 30796560), (24, 26946990), (27, 23952880), (28, 23097420), (30, 21557592), (35, 18477936), (36, 17964660), (40, 16168194), (42, 15398280), (45, 14371728), (48, 13473495), (54, 11976440), (56, 11548710), (60, 10778796), (63, 10265520), (70, 9238968), (72, 8982330), (80, 8084097), (84, 7699140), (90, 7185864), (105, 6159312), (108, 5988220), (112, 5774355), (120, 5389398), (126, 5132760), (135, 4790576), (140, 4619484), (144, 4491165), (168, 3849570), (180, 3592932), (189, 3421840), (210, 3079656), (216, 2994110), (240, 2694699), (252, 2566380), (270, 2395288), (280, 2309742), (315, 2053104), (336, 1924785), (360, 1796466), (378, 1710920), (420, 1539828), (432, 1497055), (504, 1283190), (540, 1197644), (560, 1154871), (630, 1026552), (720, 898233), (756, 855460), (840, 769914), (945, 684368), (1008, 641595), (1080, 598822), (1260, 513276), (1512, 427730), (1680, 384957), (1890, 342184), (2160, 299411), (2520, 256638), (3024, 213865), (3780, 171092), (5040, 128319), (7560, 85546), (15120, 42773)]