31751720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1$

素因数の和:116

約数の個数: 192

約数和(自身を含む): 98029440

約数和(自身を除く): 66277720

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 61, 65, 70, 77, 88, 91, 104, 110, 122, 130, 140, 143, 154, 169, 182, 220, 244, 260, 280, 286, 305, 308, 338, 364, 385, 427, 440, 455, 488, 520, 572, 610, 616, 671, 676, 715, 728, 770, 793, 845, 854, 910, 1001, 1144, 1183, 1220, 1342, 1352, 1430, 1540, 1586, 1690, 1708, 1820, 1859, 2002, 2135, 2366, 2440, 2684, 2860, 3080, 3172, 3355, 3380, 3416, 3640, 3718, 3965, 4004, 4270, 4697, 4732, 5005, 5368, 5551, 5720, 5915, 6344, 6710, 6760, 7436, 7930, 8008, 8540, 8723, 9295, 9394, 9464, 10010, 10309, 11102, 11830, 13013, 13420, 14872, 15860, 17080, 17446, 18590, 18788, 20020, 20618, 22204, 23485, 23660, 26026, 26840, 27755, 31720, 34892, 37180, 37576, 40040, 41236, 43615, 44408, 46970, 47320, 51545, 52052, 55510, 61061, 65065, 69784, 72163, 74360, 82472, 87230, 93940, 103090, 104104, 111020, 113399, 122122, 130130, 144326, 174460, 187880, 206180, 222040, 226798, 244244, 260260, 288652, 305305, 348920, 360815, 412360, 453596, 488488, 520520, 566995, 577304, 610610, 721630, 793793, 907192, 1133990, 1221220, 1443260, 1587586, 2267980, 2442440, 2886520, 3175172, 3968965, 4535960, 6350344, 7937930, 15875860, 31751720]

約数ペア:

[(1, 31751720), (2, 15875860), (4, 7937930), (5, 6350344), (7, 4535960), (8, 3968965), (10, 3175172), (11, 2886520), (13, 2442440), (14, 2267980), (20, 1587586), (22, 1443260), (26, 1221220), (28, 1133990), (35, 907192), (40, 793793), (44, 721630), (52, 610610), (55, 577304), (56, 566995), (61, 520520), (65, 488488), (70, 453596), (77, 412360), (88, 360815), (91, 348920), (104, 305305), (110, 288652), (122, 260260), (130, 244244), (140, 226798), (143, 222040), (154, 206180), (169, 187880), (182, 174460), (220, 144326), (244, 130130), (260, 122122), (280, 113399), (286, 111020), (305, 104104), (308, 103090), (338, 93940), (364, 87230), (385, 82472), (427, 74360), (440, 72163), (455, 69784), (488, 65065), (520, 61061), (572, 55510), (610, 52052), (616, 51545), (671, 47320), (676, 46970), (715, 44408), (728, 43615), (770, 41236), (793, 40040), (845, 37576), (854, 37180), (910, 34892), (1001, 31720), (1144, 27755), (1183, 26840), (1220, 26026), (1342, 23660), (1352, 23485), (1430, 22204), (1540, 20618), (1586, 20020), (1690, 18788), (1708, 18590), (1820, 17446), (1859, 17080), (2002, 15860), (2135, 14872), (2366, 13420), (2440, 13013), (2684, 11830), (2860, 11102), (3080, 10309), (3172, 10010), (3355, 9464), (3380, 9394), (3416, 9295), (3640, 8723), (3718, 8540), (3965, 8008), (4004, 7930), (4270, 7436), (4697, 6760), (4732, 6710), (5005, 6344), (5368, 5915), (5551, 5720)]