645823440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{661}}^1$

素因数の和:762

約数の個数: 240

約数和(自身を含む): 2305031040

約数和(自身を除く): 1659207600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 59, 60, 69, 72, 80, 90, 92, 115, 118, 120, 138, 144, 177, 180, 184, 207, 230, 236, 240, 276, 295, 345, 354, 360, 368, 414, 460, 472, 531, 552, 590, 661, 690, 708, 720, 828, 885, 920, 944, 1035, 1062, 1104, 1180, 1322, 1357, 1380, 1416, 1656, 1770, 1840, 1983, 2070, 2124, 2360, 2644, 2655, 2714, 2760, 2832, 3305, 3312, 3540, 3966, 4071, 4140, 4248, 4720, 5288, 5310, 5428, 5520, 5949, 6610, 6785, 7080, 7932, 8142, 8280, 8496, 9915, 10576, 10620, 10856, 11898, 12213, 13220, 13570, 14160, 15203, 15864, 16284, 16560, 19830, 20355, 21240, 21712, 23796, 24426, 26440, 27140, 29745, 30406, 31728, 32568, 38999, 39660, 40710, 42480, 45609, 47592, 48852, 52880, 54280, 59490, 60812, 61065, 65136, 76015, 77998, 79320, 81420, 91218, 95184, 97704, 108560, 116997, 118980, 121624, 122130, 136827, 152030, 155996, 158640, 162840, 182436, 194995, 195408, 228045, 233994, 237960, 243248, 244260, 273654, 304060, 311992, 325680, 350991, 364872, 389990, 456090, 467988, 475920, 488520, 547308, 584985, 608120, 623984, 684135, 701982, 729744, 779980, 896977, 912180, 935976, 977040, 1094616, 1169970, 1216240, 1368270, 1403964, 1559960, 1754955, 1793954, 1824360, 1871952, 2189232, 2339940, 2690931, 2736540, 2807928, 3119920, 3509910, 3587908, 3648720, 4484885, 4679880, 5381862, 5473080, 5615856, 7019820, 7175816, 8072793, 8969770, 9359760, 10763724, 10946160, 13454655, 14039640, 14351632, 16145586, 17939540, 21527448, 26909310, 28079280, 32291172, 35879080, 40363965, 43054896, 53818620, 64582344, 71758160, 80727930, 107637240, 129164688, 161455860, 215274480, 322911720, 645823440]

約数ペア:

[(1, 645823440), (2, 322911720), (3, 215274480), (4, 161455860), (5, 129164688), (6, 107637240), (8, 80727930), (9, 71758160), (10, 64582344), (12, 53818620), (15, 43054896), (16, 40363965), (18, 35879080), (20, 32291172), (23, 28079280), (24, 26909310), (30, 21527448), (36, 17939540), (40, 16145586), (45, 14351632), (46, 14039640), (48, 13454655), (59, 10946160), (60, 10763724), (69, 9359760), (72, 8969770), (80, 8072793), (90, 7175816), (92, 7019820), (115, 5615856), (118, 5473080), (120, 5381862), (138, 4679880), (144, 4484885), (177, 3648720), (180, 3587908), (184, 3509910), (207, 3119920), (230, 2807928), (236, 2736540), (240, 2690931), (276, 2339940), (295, 2189232), (345, 1871952), (354, 1824360), (360, 1793954), (368, 1754955), (414, 1559960), (460, 1403964), (472, 1368270), (531, 1216240), (552, 1169970), (590, 1094616), (661, 977040), (690, 935976), (708, 912180), (720, 896977), (828, 779980), (885, 729744), (920, 701982), (944, 684135), (1035, 623984), (1062, 608120), (1104, 584985), (1180, 547308), (1322, 488520), (1357, 475920), (1380, 467988), (1416, 456090), (1656, 389990), (1770, 364872), (1840, 350991), (1983, 325680), (2070, 311992), (2124, 304060), (2360, 273654), (2644, 244260), (2655, 243248), (2714, 237960), (2760, 233994), (2832, 228045), (3305, 195408), (3312, 194995), (3540, 182436), (3966, 162840), (4071, 158640), (4140, 155996), (4248, 152030), (4720, 136827), (5288, 122130), (5310, 121624), (5428, 118980), (5520, 116997), (5949, 108560), (6610, 97704), (6785, 95184), (7080, 91218), (7932, 81420), (8142, 79320), (8280, 77998), (8496, 76015), (9915, 65136), (10576, 61065), (10620, 60812), (10856, 59490), (11898, 54280), (12213, 52880), (13220, 48852), (13570, 47592), (14160, 45609), (15203, 42480), (15864, 40710), (16284, 39660), (16560, 38999), (19830, 32568), (20355, 31728), (21240, 30406), (21712, 29745), (23796, 27140), (24426, 26440)]