217627620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{937}}^1$

素因数の和:1042

約数の個数: 144

約数和(自身を含む): 718583040

約数和(自身を除く): 500955420

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 79, 84, 98, 105, 140, 147, 158, 196, 210, 237, 245, 294, 316, 395, 420, 474, 490, 553, 588, 735, 790, 937, 948, 980, 1106, 1185, 1470, 1580, 1659, 1874, 2212, 2370, 2765, 2811, 2940, 3318, 3748, 3871, 4685, 4740, 5530, 5622, 6559, 6636, 7742, 8295, 9370, 11060, 11244, 11613, 13118, 14055, 15484, 16590, 18740, 19355, 19677, 23226, 26236, 28110, 32795, 33180, 38710, 39354, 45913, 46452, 56220, 58065, 65590, 74023, 77420, 78708, 91826, 98385, 116130, 131180, 137739, 148046, 183652, 196770, 222069, 229565, 232260, 275478, 296092, 370115, 393540, 444138, 459130, 518161, 550956, 688695, 740230, 888276, 918260, 1036322, 1110345, 1377390, 1480460, 1554483, 2072644, 2220690, 2590805, 2754780, 3108966, 3627127, 4441380, 5181610, 6217932, 7254254, 7772415, 10363220, 10881381, 14508508, 15544830, 18135635, 21762762, 31089660, 36271270, 43525524, 54406905, 72542540, 108813810, 217627620]

約数ペア:

[(1, 217627620), (2, 108813810), (3, 72542540), (4, 54406905), (5, 43525524), (6, 36271270), (7, 31089660), (10, 21762762), (12, 18135635), (14, 15544830), (15, 14508508), (20, 10881381), (21, 10363220), (28, 7772415), (30, 7254254), (35, 6217932), (42, 5181610), (49, 4441380), (60, 3627127), (70, 3108966), (79, 2754780), (84, 2590805), (98, 2220690), (105, 2072644), (140, 1554483), (147, 1480460), (158, 1377390), (196, 1110345), (210, 1036322), (237, 918260), (245, 888276), (294, 740230), (316, 688695), (395, 550956), (420, 518161), (474, 459130), (490, 444138), (553, 393540), (588, 370115), (735, 296092), (790, 275478), (937, 232260), (948, 229565), (980, 222069), (1106, 196770), (1185, 183652), (1470, 148046), (1580, 137739), (1659, 131180), (1874, 116130), (2212, 98385), (2370, 91826), (2765, 78708), (2811, 77420), (2940, 74023), (3318, 65590), (3748, 58065), (3871, 56220), (4685, 46452), (4740, 45913), (5530, 39354), (5622, 38710), (6559, 33180), (6636, 32795), (7742, 28110), (8295, 26236), (9370, 23226), (11060, 19677), (11244, 19355), (11613, 18740), (13118, 16590), (14055, 15484)]