287712180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{587}}^1$

素因数の和:998

約数の個数: 144

約数和(自身を含む): 1001669760

約数和(自身を除く): 713957580

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 389, 420, 587, 630, 778, 1167, 1174, 1260, 1556, 1761, 1945, 2334, 2348, 2723, 2935, 3501, 3522, 3890, 4109, 4668, 5283, 5446, 5835, 5870, 7002, 7044, 7780, 8169, 8218, 8805, 10566, 10892, 11670, 11740, 12327, 13615, 14004, 16338, 16436, 17505, 17610, 20545, 21132, 23340, 24507, 24654, 26415, 27230, 32676, 35010, 35220, 36981, 40845, 41090, 49014, 49308, 52830, 54460, 61635, 70020, 73962, 81690, 82180, 98028, 105660, 122535, 123270, 147924, 163380, 184905, 228343, 245070, 246540, 369810, 456686, 490140, 685029, 739620, 913372, 1141715, 1370058, 1598401, 2055087, 2283430, 2740116, 3196802, 3425145, 4110174, 4566860, 4795203, 6393604, 6850290, 7992005, 8220348, 9590406, 10275435, 13700580, 14385609, 15984010, 19180812, 20550870, 23976015, 28771218, 31968020, 41101740, 47952030, 57542436, 71928045, 95904060, 143856090, 287712180]

約数ペア:

[(1, 287712180), (2, 143856090), (3, 95904060), (4, 71928045), (5, 57542436), (6, 47952030), (7, 41101740), (9, 31968020), (10, 28771218), (12, 23976015), (14, 20550870), (15, 19180812), (18, 15984010), (20, 14385609), (21, 13700580), (28, 10275435), (30, 9590406), (35, 8220348), (36, 7992005), (42, 6850290), (45, 6393604), (60, 4795203), (63, 4566860), (70, 4110174), (84, 3425145), (90, 3196802), (105, 2740116), (126, 2283430), (140, 2055087), (180, 1598401), (210, 1370058), (252, 1141715), (315, 913372), (389, 739620), (420, 685029), (587, 490140), (630, 456686), (778, 369810), (1167, 246540), (1174, 245070), (1260, 228343), (1556, 184905), (1761, 163380), (1945, 147924), (2334, 123270), (2348, 122535), (2723, 105660), (2935, 98028), (3501, 82180), (3522, 81690), (3890, 73962), (4109, 70020), (4668, 61635), (5283, 54460), (5446, 52830), (5835, 49308), (5870, 49014), (7002, 41090), (7044, 40845), (7780, 36981), (8169, 35220), (8218, 35010), (8805, 32676), (10566, 27230), (10892, 26415), (11670, 24654), (11740, 24507), (12327, 23340), (13615, 21132), (14004, 20545), (16338, 17610), (16436, 17505)]