81257400

素因数分解:

$2^3\times 3^2\times 5^2\times 7^1\times {\mathrm{6449}}^1$

素因数の和:6478

約数の個数: 144

約数和(自身を含む): 311922000

約数和(自身を除く): 230664600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 50, 56, 60, 63, 70, 72, 75, 84, 90, 100, 105, 120, 126, 140, 150, 168, 175, 180, 200, 210, 225, 252, 280, 300, 315, 350, 360, 420, 450, 504, 525, 600, 630, 700, 840, 900, 1050, 1260, 1400, 1575, 1800, 2100, 2520, 3150, 4200, 6300, 6449, 12600, 12898, 19347, 25796, 32245, 38694, 45143, 51592, 58041, 64490, 77388, 90286, 96735, 116082, 128980, 135429, 154776, 161225, 180572, 193470, 225715, 232164, 257960, 270858, 290205, 322450, 361144, 386940, 406287, 451430, 464328, 483675, 541716, 580410, 644900, 677145, 773880, 812574, 902860, 967350, 1083432, 1128575, 1160820, 1289800, 1354290, 1451025, 1625148, 1805720, 1934700, 2031435, 2257150, 2321640, 2708580, 2902050, 3250296, 3385725, 3869400, 4062870, 4514300, 5417160, 5804100, 6771450, 8125740, 9028600, 10157175, 11608200, 13542900, 16251480, 20314350, 27085800, 40628700, 81257400]

約数ペア:

[(1, 81257400), (2, 40628700), (3, 27085800), (4, 20314350), (5, 16251480), (6, 13542900), (7, 11608200), (8, 10157175), (9, 9028600), (10, 8125740), (12, 6771450), (14, 5804100), (15, 5417160), (18, 4514300), (20, 4062870), (21, 3869400), (24, 3385725), (25, 3250296), (28, 2902050), (30, 2708580), (35, 2321640), (36, 2257150), (40, 2031435), (42, 1934700), (45, 1805720), (50, 1625148), (56, 1451025), (60, 1354290), (63, 1289800), (70, 1160820), (72, 1128575), (75, 1083432), (84, 967350), (90, 902860), (100, 812574), (105, 773880), (120, 677145), (126, 644900), (140, 580410), (150, 541716), (168, 483675), (175, 464328), (180, 451430), (200, 406287), (210, 386940), (225, 361144), (252, 322450), (280, 290205), (300, 270858), (315, 257960), (350, 232164), (360, 225715), (420, 193470), (450, 180572), (504, 161225), (525, 154776), (600, 135429), (630, 128980), (700, 116082), (840, 96735), (900, 90286), (1050, 77388), (1260, 64490), (1400, 58041), (1575, 51592), (1800, 45143), (2100, 38694), (2520, 32245), (3150, 25796), (4200, 19347), (6300, 12898), (6449, 12600)]