308988160

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{599}}^1$

素因数の和:664

約数の個数: 144

約数和(自身を含む): 824140800

約数和(自身を除く): 515152640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 310, 320, 403, 416, 496, 520, 599, 620, 640, 806, 832, 992, 1040, 1198, 1240, 1280, 1612, 1664, 1984, 2015, 2080, 2396, 2480, 2995, 3224, 3328, 3968, 4030, 4160, 4792, 4960, 5990, 6448, 7787, 7936, 8060, 8320, 9584, 9920, 11980, 12896, 15574, 16120, 16640, 18569, 19168, 19840, 23960, 25792, 31148, 32240, 37138, 38336, 38935, 39680, 47920, 51584, 62296, 64480, 74276, 76672, 77870, 92845, 95840, 103168, 124592, 128960, 148552, 153344, 155740, 185690, 191680, 241397, 249184, 257920, 297104, 311480, 371380, 383360, 482794, 498368, 515840, 594208, 622960, 742760, 766720, 965588, 996736, 1188416, 1206985, 1245920, 1485520, 1931176, 1993472, 2376832, 2413970, 2491840, 2971040, 3862352, 4753664, 4827940, 4983680, 5942080, 7724704, 9655880, 9967360, 11884160, 15449408, 19311760, 23768320, 30898816, 38623520, 61797632, 77247040, 154494080, 308988160]

約数ペア:

[(1, 308988160), (2, 154494080), (4, 77247040), (5, 61797632), (8, 38623520), (10, 30898816), (13, 23768320), (16, 19311760), (20, 15449408), (26, 11884160), (31, 9967360), (32, 9655880), (40, 7724704), (52, 5942080), (62, 4983680), (64, 4827940), (65, 4753664), (80, 3862352), (104, 2971040), (124, 2491840), (128, 2413970), (130, 2376832), (155, 1993472), (160, 1931176), (208, 1485520), (248, 1245920), (256, 1206985), (260, 1188416), (310, 996736), (320, 965588), (403, 766720), (416, 742760), (496, 622960), (520, 594208), (599, 515840), (620, 498368), (640, 482794), (806, 383360), (832, 371380), (992, 311480), (1040, 297104), (1198, 257920), (1240, 249184), (1280, 241397), (1612, 191680), (1664, 185690), (1984, 155740), (2015, 153344), (2080, 148552), (2396, 128960), (2480, 124592), (2995, 103168), (3224, 95840), (3328, 92845), (3968, 77870), (4030, 76672), (4160, 74276), (4792, 64480), (4960, 62296), (5990, 51584), (6448, 47920), (7787, 39680), (7936, 38935), (8060, 38336), (8320, 37138), (9584, 32240), (9920, 31148), (11980, 25792), (12896, 23960), (15574, 19840), (16120, 19168), (16640, 18569)]