31543120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:153

約数の個数: 160

約数和(自身を含む): 91422720

約数和(自身を除く): 59879600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 31, 35, 40, 46, 56, 62, 70, 79, 80, 92, 112, 115, 124, 140, 155, 158, 161, 184, 217, 230, 248, 280, 310, 316, 322, 368, 395, 434, 460, 496, 553, 560, 620, 632, 644, 713, 790, 805, 868, 920, 1085, 1106, 1240, 1264, 1288, 1426, 1580, 1610, 1736, 1817, 1840, 2170, 2212, 2449, 2480, 2576, 2765, 2852, 3160, 3220, 3472, 3565, 3634, 4340, 4424, 4898, 4991, 5530, 5704, 6320, 6440, 7130, 7268, 8680, 8848, 9085, 9796, 9982, 11060, 11408, 12245, 12719, 12880, 14260, 14536, 17143, 17360, 18170, 19592, 19964, 22120, 24490, 24955, 25438, 28520, 29072, 34286, 36340, 39184, 39928, 44240, 48980, 49910, 50876, 56327, 57040, 63595, 68572, 72680, 79856, 85715, 97960, 99820, 101752, 112654, 127190, 137144, 145360, 171430, 195920, 199640, 203504, 225308, 254380, 274288, 281635, 342860, 394289, 399280, 450616, 508760, 563270, 685720, 788578, 901232, 1017520, 1126540, 1371440, 1577156, 1971445, 2253080, 3154312, 3942890, 4506160, 6308624, 7885780, 15771560, 31543120]

約数ペア:

[(1, 31543120), (2, 15771560), (4, 7885780), (5, 6308624), (7, 4506160), (8, 3942890), (10, 3154312), (14, 2253080), (16, 1971445), (20, 1577156), (23, 1371440), (28, 1126540), (31, 1017520), (35, 901232), (40, 788578), (46, 685720), (56, 563270), (62, 508760), (70, 450616), (79, 399280), (80, 394289), (92, 342860), (112, 281635), (115, 274288), (124, 254380), (140, 225308), (155, 203504), (158, 199640), (161, 195920), (184, 171430), (217, 145360), (230, 137144), (248, 127190), (280, 112654), (310, 101752), (316, 99820), (322, 97960), (368, 85715), (395, 79856), (434, 72680), (460, 68572), (496, 63595), (553, 57040), (560, 56327), (620, 50876), (632, 49910), (644, 48980), (713, 44240), (790, 39928), (805, 39184), (868, 36340), (920, 34286), (1085, 29072), (1106, 28520), (1240, 25438), (1264, 24955), (1288, 24490), (1426, 22120), (1580, 19964), (1610, 19592), (1736, 18170), (1817, 17360), (1840, 17143), (2170, 14536), (2212, 14260), (2449, 12880), (2480, 12719), (2576, 12245), (2765, 11408), (2852, 11060), (3160, 9982), (3220, 9796), (3472, 9085), (3565, 8848), (3634, 8680), (4340, 7268), (4424, 7130), (4898, 6440), (4991, 6320), (5530, 5704)]