209757720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{467}}^1$

素因数の和:697

約数の個数: 128

約数和(自身を含む): 667180800

約数和(自身を除く): 457423080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 197, 228, 285, 380, 394, 456, 467, 570, 591, 760, 788, 934, 985, 1140, 1182, 1401, 1576, 1868, 1970, 2280, 2335, 2364, 2802, 2955, 3736, 3743, 3940, 4670, 4728, 5604, 5910, 7005, 7486, 7880, 8873, 9340, 11208, 11229, 11820, 14010, 14972, 17746, 18680, 18715, 22458, 23640, 26619, 28020, 29944, 35492, 37430, 44365, 44916, 53238, 56040, 56145, 70984, 74860, 88730, 89832, 91999, 106476, 112290, 133095, 149720, 177460, 183998, 212952, 224580, 266190, 275997, 354920, 367996, 449160, 459995, 532380, 551994, 735992, 919990, 1064760, 1103988, 1379985, 1747981, 1839980, 2207976, 2759970, 3495962, 3679960, 5243943, 5519940, 6991924, 8739905, 10487886, 11039880, 13983848, 17479810, 20975772, 26219715, 34959620, 41951544, 52439430, 69919240, 104878860, 209757720]

約数ペア:

[(1, 209757720), (2, 104878860), (3, 69919240), (4, 52439430), (5, 41951544), (6, 34959620), (8, 26219715), (10, 20975772), (12, 17479810), (15, 13983848), (19, 11039880), (20, 10487886), (24, 8739905), (30, 6991924), (38, 5519940), (40, 5243943), (57, 3679960), (60, 3495962), (76, 2759970), (95, 2207976), (114, 1839980), (120, 1747981), (152, 1379985), (190, 1103988), (197, 1064760), (228, 919990), (285, 735992), (380, 551994), (394, 532380), (456, 459995), (467, 449160), (570, 367996), (591, 354920), (760, 275997), (788, 266190), (934, 224580), (985, 212952), (1140, 183998), (1182, 177460), (1401, 149720), (1576, 133095), (1868, 112290), (1970, 106476), (2280, 91999), (2335, 89832), (2364, 88730), (2802, 74860), (2955, 70984), (3736, 56145), (3743, 56040), (3940, 53238), (4670, 44916), (4728, 44365), (5604, 37430), (5910, 35492), (7005, 29944), (7486, 28020), (7880, 26619), (8873, 23640), (9340, 22458), (11208, 18715), (11229, 18680), (11820, 17746), (14010, 14972)]