71872640

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:350

約数の個数: 128

約数和(自身を含む): 200344320

約数和(自身を除く): 128471680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 64, 70, 80, 112, 122, 128, 140, 160, 224, 244, 263, 280, 305, 320, 427, 448, 488, 526, 560, 610, 640, 854, 896, 976, 1052, 1120, 1220, 1315, 1708, 1841, 1952, 2104, 2135, 2240, 2440, 2630, 3416, 3682, 3904, 4208, 4270, 4480, 4880, 5260, 6832, 7364, 7808, 8416, 8540, 9205, 9760, 10520, 13664, 14728, 16043, 16832, 17080, 18410, 19520, 21040, 27328, 29456, 32086, 33664, 34160, 36820, 39040, 42080, 54656, 58912, 64172, 68320, 73640, 80215, 84160, 112301, 117824, 128344, 136640, 147280, 160430, 168320, 224602, 235648, 256688, 273280, 294560, 320860, 449204, 513376, 561505, 589120, 641720, 898408, 1026752, 1123010, 1178240, 1283440, 1796816, 2053504, 2246020, 2566880, 3593632, 4492040, 5133760, 7187264, 8984080, 10267520, 14374528, 17968160, 35936320, 71872640]

約数ペア:

[(1, 71872640), (2, 35936320), (4, 17968160), (5, 14374528), (7, 10267520), (8, 8984080), (10, 7187264), (14, 5133760), (16, 4492040), (20, 3593632), (28, 2566880), (32, 2246020), (35, 2053504), (40, 1796816), (56, 1283440), (61, 1178240), (64, 1123010), (70, 1026752), (80, 898408), (112, 641720), (122, 589120), (128, 561505), (140, 513376), (160, 449204), (224, 320860), (244, 294560), (263, 273280), (280, 256688), (305, 235648), (320, 224602), (427, 168320), (448, 160430), (488, 147280), (526, 136640), (560, 128344), (610, 117824), (640, 112301), (854, 84160), (896, 80215), (976, 73640), (1052, 68320), (1120, 64172), (1220, 58912), (1315, 54656), (1708, 42080), (1841, 39040), (1952, 36820), (2104, 34160), (2135, 33664), (2240, 32086), (2440, 29456), (2630, 27328), (3416, 21040), (3682, 19520), (3904, 18410), (4208, 17080), (4270, 16832), (4480, 16043), (4880, 14728), (5260, 13664), (6832, 10520), (7364, 9760), (7808, 9205), (8416, 8540)]