31991960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:106

約数の個数: 256

約数和(自身を含む): 104509440

約数和(自身を除く): 72517480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 17, 20, 22, 26, 28, 34, 35, 40, 44, 47, 52, 55, 56, 65, 68, 70, 77, 85, 88, 91, 94, 104, 110, 119, 130, 136, 140, 143, 154, 170, 182, 187, 188, 220, 221, 235, 238, 260, 280, 286, 308, 329, 340, 364, 374, 376, 385, 440, 442, 455, 470, 476, 517, 520, 572, 595, 611, 616, 658, 680, 715, 728, 748, 770, 799, 884, 910, 935, 940, 952, 1001, 1034, 1105, 1144, 1190, 1222, 1309, 1316, 1430, 1496, 1540, 1547, 1598, 1645, 1768, 1820, 1870, 1880, 2002, 2068, 2210, 2380, 2431, 2444, 2585, 2618, 2632, 2860, 3055, 3080, 3094, 3196, 3290, 3619, 3640, 3740, 3995, 4004, 4136, 4277, 4420, 4760, 4862, 4888, 5005, 5170, 5236, 5593, 5720, 6110, 6188, 6392, 6545, 6580, 6721, 7238, 7480, 7735, 7990, 8008, 8554, 8789, 8840, 9724, 10010, 10340, 10387, 10472, 11186, 12155, 12220, 12376, 13090, 13160, 13442, 14476, 15470, 15980, 17017, 17108, 17578, 18095, 19448, 20020, 20680, 20774, 21385, 22372, 24310, 24440, 26180, 26884, 27965, 28952, 30940, 31960, 33605, 34034, 34216, 35156, 36190, 40040, 41548, 42770, 43945, 44744, 47047, 48620, 51935, 52360, 53768, 55930, 61523, 61880, 67210, 68068, 70312, 72380, 72709, 83096, 85085, 85540, 87890, 94094, 97240, 103870, 111860, 114257, 123046, 134420, 136136, 144760, 145418, 170170, 171080, 175780, 188188, 207740, 223720, 228514, 235235, 246092, 268840, 290836, 307615, 340340, 351560, 363545, 376376, 415480, 457028, 470470, 492184, 571285, 581672, 615230, 680680, 727090, 799799, 914056, 940940, 1142570, 1230460, 1454180, 1599598, 1881880, 2285140, 2460920, 2908360, 3199196, 3998995, 4570280, 6398392, 7997990, 15995980, 31991960]

約数ペア:

[(1, 31991960), (2, 15995980), (4, 7997990), (5, 6398392), (7, 4570280), (8, 3998995), (10, 3199196), (11, 2908360), (13, 2460920), (14, 2285140), (17, 1881880), (20, 1599598), (22, 1454180), (26, 1230460), (28, 1142570), (34, 940940), (35, 914056), (40, 799799), (44, 727090), (47, 680680), (52, 615230), (55, 581672), (56, 571285), (65, 492184), (68, 470470), (70, 457028), (77, 415480), (85, 376376), (88, 363545), (91, 351560), (94, 340340), (104, 307615), (110, 290836), (119, 268840), (130, 246092), (136, 235235), (140, 228514), (143, 223720), (154, 207740), (170, 188188), (182, 175780), (187, 171080), (188, 170170), (220, 145418), (221, 144760), (235, 136136), (238, 134420), (260, 123046), (280, 114257), (286, 111860), (308, 103870), (329, 97240), (340, 94094), (364, 87890), (374, 85540), (376, 85085), (385, 83096), (440, 72709), (442, 72380), (455, 70312), (470, 68068), (476, 67210), (517, 61880), (520, 61523), (572, 55930), (595, 53768), (611, 52360), (616, 51935), (658, 48620), (680, 47047), (715, 44744), (728, 43945), (748, 42770), (770, 41548), (799, 40040), (884, 36190), (910, 35156), (935, 34216), (940, 34034), (952, 33605), (1001, 31960), (1034, 30940), (1105, 28952), (1144, 27965), (1190, 26884), (1222, 26180), (1309, 24440), (1316, 24310), (1430, 22372), (1496, 21385), (1540, 20774), (1547, 20680), (1598, 20020), (1645, 19448), (1768, 18095), (1820, 17578), (1870, 17108), (1880, 17017), (2002, 15980), (2068, 15470), (2210, 14476), (2380, 13442), (2431, 13160), (2444, 13090), (2585, 12376), (2618, 12220), (2632, 12155), (2860, 11186), (3055, 10472), (3080, 10387), (3094, 10340), (3196, 10010), (3290, 9724), (3619, 8840), (3640, 8789), (3740, 8554), (3995, 8008), (4004, 7990), (4136, 7735), (4277, 7480), (4420, 7238), (4760, 6721), (4862, 6580), (4888, 6545), (5005, 6392), (5170, 6188), (5236, 6110), (5593, 5720)]