31486720

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1447}}^1$

素因数の和:1485

約数の個数: 72

約数和(自身を含む): 79912224

約数和(自身を除く): 48425504

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 544, 640, 680, 1088, 1280, 1360, 1447, 2176, 2720, 2894, 4352, 5440, 5788, 7235, 10880, 11576, 14470, 21760, 23152, 24599, 28940, 46304, 49198, 57880, 92608, 98396, 115760, 122995, 185216, 196792, 231520, 245990, 370432, 393584, 463040, 491980, 787168, 926080, 983960, 1574336, 1852160, 1967920, 3148672, 3935840, 6297344, 7871680, 15743360, 31486720]

約数ペア:

[(1, 31486720), (2, 15743360), (4, 7871680), (5, 6297344), (8, 3935840), (10, 3148672), (16, 1967920), (17, 1852160), (20, 1574336), (32, 983960), (34, 926080), (40, 787168), (64, 491980), (68, 463040), (80, 393584), (85, 370432), (128, 245990), (136, 231520), (160, 196792), (170, 185216), (256, 122995), (272, 115760), (320, 98396), (340, 92608), (544, 57880), (640, 49198), (680, 46304), (1088, 28940), (1280, 24599), (1360, 23152), (1447, 21760), (2176, 14470), (2720, 11576), (2894, 10880), (4352, 7235), (5440, 5788)]