328756480

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{859}}^1$

素因数の和:916

約数の個数: 144

約数和(自身を含む): 885951360

約数和(自身を除く): 557194880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 64, 65, 80, 92, 104, 115, 128, 130, 160, 184, 208, 230, 256, 260, 299, 320, 368, 416, 460, 520, 598, 640, 736, 832, 859, 920, 1040, 1196, 1280, 1472, 1495, 1664, 1718, 1840, 2080, 2392, 2944, 2990, 3328, 3436, 3680, 4160, 4295, 4784, 5888, 5980, 6872, 7360, 8320, 8590, 9568, 11167, 11960, 13744, 14720, 16640, 17180, 19136, 19757, 22334, 23920, 27488, 29440, 34360, 38272, 39514, 44668, 47840, 54976, 55835, 68720, 76544, 79028, 89336, 95680, 98785, 109952, 111670, 137440, 158056, 178672, 191360, 197570, 219904, 223340, 256841, 274880, 316112, 357344, 382720, 395140, 446680, 513682, 549760, 632224, 714688, 790280, 893360, 1027364, 1099520, 1264448, 1284205, 1429376, 1580560, 1786720, 2054728, 2528896, 2568410, 2858752, 3161120, 3573440, 4109456, 5057792, 5136820, 6322240, 7146880, 8218912, 10273640, 12644480, 14293760, 16437824, 20547280, 25288960, 32875648, 41094560, 65751296, 82189120, 164378240, 328756480]

約数ペア:

[(1, 328756480), (2, 164378240), (4, 82189120), (5, 65751296), (8, 41094560), (10, 32875648), (13, 25288960), (16, 20547280), (20, 16437824), (23, 14293760), (26, 12644480), (32, 10273640), (40, 8218912), (46, 7146880), (52, 6322240), (64, 5136820), (65, 5057792), (80, 4109456), (92, 3573440), (104, 3161120), (115, 2858752), (128, 2568410), (130, 2528896), (160, 2054728), (184, 1786720), (208, 1580560), (230, 1429376), (256, 1284205), (260, 1264448), (299, 1099520), (320, 1027364), (368, 893360), (416, 790280), (460, 714688), (520, 632224), (598, 549760), (640, 513682), (736, 446680), (832, 395140), (859, 382720), (920, 357344), (1040, 316112), (1196, 274880), (1280, 256841), (1472, 223340), (1495, 219904), (1664, 197570), (1718, 191360), (1840, 178672), (2080, 158056), (2392, 137440), (2944, 111670), (2990, 109952), (3328, 98785), (3436, 95680), (3680, 89336), (4160, 79028), (4295, 76544), (4784, 68720), (5888, 55835), (5980, 54976), (6872, 47840), (7360, 44668), (8320, 39514), (8590, 38272), (9568, 34360), (11167, 29440), (11960, 27488), (13744, 23920), (14720, 22334), (16640, 19757), (17180, 19136)]