121555920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:138

約数の個数: 240

約数和(自身を含む): 421794432

約数和(自身を除く): 300238512

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 23, 24, 30, 38, 40, 46, 48, 57, 60, 61, 69, 76, 80, 92, 95, 114, 115, 120, 122, 138, 152, 183, 184, 190, 228, 230, 240, 244, 276, 285, 304, 305, 345, 361, 366, 368, 380, 437, 456, 460, 488, 552, 570, 610, 690, 722, 732, 760, 874, 912, 915, 920, 976, 1083, 1104, 1140, 1159, 1220, 1311, 1380, 1403, 1444, 1464, 1520, 1748, 1805, 1830, 1840, 2166, 2185, 2280, 2318, 2440, 2622, 2760, 2806, 2888, 2928, 3477, 3496, 3610, 3660, 4209, 4332, 4370, 4560, 4636, 4880, 5244, 5415, 5520, 5612, 5776, 5795, 6555, 6954, 6992, 7015, 7220, 7320, 8303, 8418, 8664, 8740, 9272, 10488, 10830, 11224, 11590, 13110, 13908, 14030, 14440, 14640, 16606, 16836, 17328, 17385, 17480, 18544, 20976, 21045, 21660, 22021, 22448, 23180, 24909, 26220, 26657, 27816, 28060, 28880, 33212, 33672, 34770, 34960, 41515, 42090, 43320, 44042, 46360, 49818, 52440, 53314, 55632, 56120, 66063, 66424, 67344, 69540, 79971, 83030, 84180, 86640, 88084, 92720, 99636, 104880, 106628, 110105, 112240, 124545, 132126, 132848, 133285, 139080, 159942, 166060, 168360, 176168, 199272, 213256, 220210, 249090, 264252, 266570, 278160, 319884, 330315, 332120, 336720, 352336, 398544, 399855, 426512, 440420, 498180, 506483, 528504, 533140, 639768, 660630, 664240, 799710, 880840, 996360, 1012966, 1057008, 1066280, 1279536, 1321260, 1519449, 1599420, 1761680, 1992720, 2025932, 2132560, 2532415, 2642520, 3038898, 3198840, 4051864, 5064830, 5285040, 6077796, 6397680, 7597245, 8103728, 10129660, 12155592, 15194490, 20259320, 24311184, 30388980, 40518640, 60777960, 121555920]

約数ペア:

[(1, 121555920), (2, 60777960), (3, 40518640), (4, 30388980), (5, 24311184), (6, 20259320), (8, 15194490), (10, 12155592), (12, 10129660), (15, 8103728), (16, 7597245), (19, 6397680), (20, 6077796), (23, 5285040), (24, 5064830), (30, 4051864), (38, 3198840), (40, 3038898), (46, 2642520), (48, 2532415), (57, 2132560), (60, 2025932), (61, 1992720), (69, 1761680), (76, 1599420), (80, 1519449), (92, 1321260), (95, 1279536), (114, 1066280), (115, 1057008), (120, 1012966), (122, 996360), (138, 880840), (152, 799710), (183, 664240), (184, 660630), (190, 639768), (228, 533140), (230, 528504), (240, 506483), (244, 498180), (276, 440420), (285, 426512), (304, 399855), (305, 398544), (345, 352336), (361, 336720), (366, 332120), (368, 330315), (380, 319884), (437, 278160), (456, 266570), (460, 264252), (488, 249090), (552, 220210), (570, 213256), (610, 199272), (690, 176168), (722, 168360), (732, 166060), (760, 159942), (874, 139080), (912, 133285), (915, 132848), (920, 132126), (976, 124545), (1083, 112240), (1104, 110105), (1140, 106628), (1159, 104880), (1220, 99636), (1311, 92720), (1380, 88084), (1403, 86640), (1444, 84180), (1464, 83030), (1520, 79971), (1748, 69540), (1805, 67344), (1830, 66424), (1840, 66063), (2166, 56120), (2185, 55632), (2280, 53314), (2318, 52440), (2440, 49818), (2622, 46360), (2760, 44042), (2806, 43320), (2888, 42090), (2928, 41515), (3477, 34960), (3496, 34770), (3610, 33672), (3660, 33212), (4209, 28880), (4332, 28060), (4370, 27816), (4560, 26657), (4636, 26220), (4880, 24909), (5244, 23180), (5415, 22448), (5520, 22021), (5612, 21660), (5776, 21045), (5795, 20976), (6555, 18544), (6954, 17480), (6992, 17385), (7015, 17328), (7220, 16836), (7320, 16606), (8303, 14640), (8418, 14440), (8664, 14030), (8740, 13908), (9272, 13110), (10488, 11590), (10830, 11224)]