1809278720

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^2\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:195

約数の個数: 216

約数和(自身を含む): 4736430384

約数和(自身を除く): 2927151664

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 67, 68, 73, 80, 85, 128, 134, 136, 146, 160, 170, 256, 268, 272, 289, 292, 320, 335, 340, 365, 536, 544, 578, 584, 640, 670, 680, 730, 1072, 1088, 1139, 1156, 1168, 1241, 1280, 1340, 1360, 1445, 1460, 2144, 2176, 2278, 2312, 2336, 2482, 2680, 2720, 2890, 2920, 4288, 4352, 4556, 4624, 4672, 4891, 4964, 5360, 5440, 5695, 5780, 5840, 6205, 8576, 9112, 9248, 9344, 9782, 9928, 10720, 10880, 11390, 11560, 11680, 12410, 17152, 18224, 18496, 18688, 19363, 19564, 19856, 21097, 21440, 21760, 22780, 23120, 23360, 24455, 24820, 36448, 36992, 38726, 39128, 39712, 42194, 42880, 45560, 46240, 46720, 48910, 49640, 72896, 73984, 77452, 78256, 79424, 83147, 84388, 85760, 91120, 92480, 93440, 96815, 97820, 99280, 105485, 145792, 154904, 156512, 158848, 166294, 168776, 182240, 184960, 193630, 195640, 198560, 210970, 291584, 309808, 313024, 317696, 332588, 337552, 364480, 369920, 387260, 391280, 397120, 415735, 421940, 619616, 626048, 665176, 675104, 728960, 774520, 782560, 794240, 831470, 843880, 1239232, 1252096, 1330352, 1350208, 1413499, 1457920, 1549040, 1565120, 1588480, 1662940, 1687760, 2478464, 2660704, 2700416, 2826998, 3098080, 3130240, 3325880, 3375520, 4956928, 5321408, 5400832, 5653996, 6196160, 6260480, 6651760, 6751040, 7067495, 10642816, 11307992, 12392320, 13303520, 13502080, 14134990, 21285632, 22615984, 24784640, 26607040, 27004160, 28269980, 45231968, 53214080, 56539960, 90463936, 106428160, 113079920, 180927872, 226159840, 361855744, 452319680, 904639360, 1809278720]

約数ペア:

[(1, 1809278720), (2, 904639360), (4, 452319680), (5, 361855744), (8, 226159840), (10, 180927872), (16, 113079920), (17, 106428160), (20, 90463936), (32, 56539960), (34, 53214080), (40, 45231968), (64, 28269980), (67, 27004160), (68, 26607040), (73, 24784640), (80, 22615984), (85, 21285632), (128, 14134990), (134, 13502080), (136, 13303520), (146, 12392320), (160, 11307992), (170, 10642816), (256, 7067495), (268, 6751040), (272, 6651760), (289, 6260480), (292, 6196160), (320, 5653996), (335, 5400832), (340, 5321408), (365, 4956928), (536, 3375520), (544, 3325880), (578, 3130240), (584, 3098080), (640, 2826998), (670, 2700416), (680, 2660704), (730, 2478464), (1072, 1687760), (1088, 1662940), (1139, 1588480), (1156, 1565120), (1168, 1549040), (1241, 1457920), (1280, 1413499), (1340, 1350208), (1360, 1330352), (1445, 1252096), (1460, 1239232), (2144, 843880), (2176, 831470), (2278, 794240), (2312, 782560), (2336, 774520), (2482, 728960), (2680, 675104), (2720, 665176), (2890, 626048), (2920, 619616), (4288, 421940), (4352, 415735), (4556, 397120), (4624, 391280), (4672, 387260), (4891, 369920), (4964, 364480), (5360, 337552), (5440, 332588), (5695, 317696), (5780, 313024), (5840, 309808), (6205, 291584), (8576, 210970), (9112, 198560), (9248, 195640), (9344, 193630), (9782, 184960), (9928, 182240), (10720, 168776), (10880, 166294), (11390, 158848), (11560, 156512), (11680, 154904), (12410, 145792), (17152, 105485), (18224, 99280), (18496, 97820), (18688, 96815), (19363, 93440), (19564, 92480), (19856, 91120), (21097, 85760), (21440, 84388), (21760, 83147), (22780, 79424), (23120, 78256), (23360, 77452), (24455, 73984), (24820, 72896), (36448, 49640), (36992, 48910), (38726, 46720), (39128, 46240), (39712, 45560), (42194, 42880)]