15771560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:151

約数の個数: 128

約数和(自身を含む): 44236800

約数和(自身を除く): 28465240

約数列:

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

約数ペア:

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