213835520

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:386

約数の個数: 144

約数和(自身を含む): 561593088

約数和(自身を除く): 347757568

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 64, 68, 80, 85, 124, 128, 136, 155, 160, 170, 248, 256, 272, 310, 317, 320, 340, 496, 527, 544, 620, 634, 640, 680, 992, 1054, 1088, 1240, 1268, 1280, 1360, 1585, 1984, 2108, 2176, 2480, 2536, 2635, 2720, 3170, 3968, 4216, 4352, 4960, 5072, 5270, 5389, 5440, 6340, 7936, 8432, 9827, 9920, 10144, 10540, 10778, 10880, 12680, 16864, 19654, 19840, 20288, 21080, 21556, 21760, 25360, 26945, 33728, 39308, 39680, 40576, 42160, 43112, 49135, 50720, 53890, 67456, 78616, 81152, 84320, 86224, 98270, 101440, 107780, 134912, 157232, 167059, 168640, 172448, 196540, 202880, 215560, 314464, 334118, 337280, 344896, 393080, 405760, 431120, 628928, 668236, 674560, 689792, 786160, 835295, 862240, 1257856, 1336472, 1379584, 1572320, 1670590, 1724480, 2515712, 2672944, 3144640, 3341180, 3448960, 5345888, 6289280, 6682360, 6897920, 10691776, 12578560, 13364720, 21383552, 26729440, 42767104, 53458880, 106917760, 213835520]

約数ペア:

[(1, 213835520), (2, 106917760), (4, 53458880), (5, 42767104), (8, 26729440), (10, 21383552), (16, 13364720), (17, 12578560), (20, 10691776), (31, 6897920), (32, 6682360), (34, 6289280), (40, 5345888), (62, 3448960), (64, 3341180), (68, 3144640), (80, 2672944), (85, 2515712), (124, 1724480), (128, 1670590), (136, 1572320), (155, 1379584), (160, 1336472), (170, 1257856), (248, 862240), (256, 835295), (272, 786160), (310, 689792), (317, 674560), (320, 668236), (340, 628928), (496, 431120), (527, 405760), (544, 393080), (620, 344896), (634, 337280), (640, 334118), (680, 314464), (992, 215560), (1054, 202880), (1088, 196540), (1240, 172448), (1268, 168640), (1280, 167059), (1360, 157232), (1585, 134912), (1984, 107780), (2108, 101440), (2176, 98270), (2480, 86224), (2536, 84320), (2635, 81152), (2720, 78616), (3170, 67456), (3968, 53890), (4216, 50720), (4352, 49135), (4960, 43112), (5072, 42160), (5270, 40576), (5389, 39680), (5440, 39308), (6340, 33728), (7936, 26945), (8432, 25360), (9827, 21760), (9920, 21556), (10144, 21080), (10540, 20288), (10778, 19840), (10880, 19654), (12680, 16864)]