31687560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:172

約数の個数: 192

約数和(自身を含む): 111196800

約数和(自身を除く): 79509240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 43, 45, 46, 60, 69, 72, 86, 89, 90, 92, 115, 120, 129, 138, 172, 178, 180, 184, 207, 215, 230, 258, 267, 276, 344, 345, 356, 360, 387, 414, 430, 445, 460, 516, 534, 552, 645, 690, 712, 774, 801, 828, 860, 890, 920, 989, 1032, 1035, 1068, 1290, 1335, 1380, 1548, 1602, 1656, 1720, 1780, 1935, 1978, 2047, 2070, 2136, 2580, 2670, 2760, 2967, 3096, 3204, 3560, 3827, 3870, 3956, 4005, 4094, 4140, 4945, 5160, 5340, 5934, 6141, 6408, 7654, 7740, 7912, 8010, 8188, 8280, 8901, 9890, 10235, 10680, 11481, 11868, 12282, 14835, 15308, 15480, 16020, 16376, 17802, 18423, 19135, 19780, 20470, 22962, 23736, 24564, 29670, 30616, 30705, 32040, 34443, 35604, 36846, 38270, 39560, 40940, 44505, 45924, 49128, 57405, 59340, 61410, 68886, 71208, 73692, 76540, 81880, 88021, 89010, 91848, 92115, 114810, 118680, 122820, 137772, 147384, 153080, 172215, 176042, 178020, 184230, 229620, 245640, 264063, 275544, 344430, 352084, 356040, 368460, 440105, 459240, 528126, 688860, 704168, 736920, 792189, 880210, 1056252, 1320315, 1377720, 1584378, 1760420, 2112504, 2640630, 3168756, 3520840, 3960945, 5281260, 6337512, 7921890, 10562520, 15843780, 31687560]

約数ペア:

[(1, 31687560), (2, 15843780), (3, 10562520), (4, 7921890), (5, 6337512), (6, 5281260), (8, 3960945), (9, 3520840), (10, 3168756), (12, 2640630), (15, 2112504), (18, 1760420), (20, 1584378), (23, 1377720), (24, 1320315), (30, 1056252), (36, 880210), (40, 792189), (43, 736920), (45, 704168), (46, 688860), (60, 528126), (69, 459240), (72, 440105), (86, 368460), (89, 356040), (90, 352084), (92, 344430), (115, 275544), (120, 264063), (129, 245640), (138, 229620), (172, 184230), (178, 178020), (180, 176042), (184, 172215), (207, 153080), (215, 147384), (230, 137772), (258, 122820), (267, 118680), (276, 114810), (344, 92115), (345, 91848), (356, 89010), (360, 88021), (387, 81880), (414, 76540), (430, 73692), (445, 71208), (460, 68886), (516, 61410), (534, 59340), (552, 57405), (645, 49128), (690, 45924), (712, 44505), (774, 40940), (801, 39560), (828, 38270), (860, 36846), (890, 35604), (920, 34443), (989, 32040), (1032, 30705), (1035, 30616), (1068, 29670), (1290, 24564), (1335, 23736), (1380, 22962), (1548, 20470), (1602, 19780), (1656, 19135), (1720, 18423), (1780, 17802), (1935, 16376), (1978, 16020), (2047, 15480), (2070, 15308), (2136, 14835), (2580, 12282), (2670, 11868), (2760, 11481), (2967, 10680), (3096, 10235), (3204, 9890), (3560, 8901), (3827, 8280), (3870, 8188), (3956, 8010), (4005, 7912), (4094, 7740), (4140, 7654), (4945, 6408), (5160, 6141), (5340, 5934)]