31686900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:294

約数の個数: 144

約数和(自身を含む): 106659840

約数和(自身を除く): 74972940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 79, 84, 100, 105, 140, 150, 158, 175, 191, 210, 237, 300, 316, 350, 382, 395, 420, 474, 525, 553, 573, 700, 764, 790, 948, 955, 1050, 1106, 1146, 1185, 1337, 1580, 1659, 1910, 1975, 2100, 2212, 2292, 2370, 2674, 2765, 2865, 3318, 3820, 3950, 4011, 4740, 4775, 5348, 5530, 5730, 5925, 6636, 6685, 7900, 8022, 8295, 9550, 11060, 11460, 11850, 13370, 13825, 14325, 15089, 16044, 16590, 19100, 20055, 23700, 26740, 27650, 28650, 30178, 33180, 33425, 40110, 41475, 45267, 55300, 57300, 60356, 66850, 75445, 80220, 82950, 90534, 100275, 105623, 133700, 150890, 165900, 181068, 200550, 211246, 226335, 301780, 316869, 377225, 401100, 422492, 452670, 528115, 633738, 754450, 905340, 1056230, 1131675, 1267476, 1508900, 1584345, 2112460, 2263350, 2640575, 3168690, 4526700, 5281150, 6337380, 7921725, 10562300, 15843450, 31686900]

約数ペア:

[(1, 31686900), (2, 15843450), (3, 10562300), (4, 7921725), (5, 6337380), (6, 5281150), (7, 4526700), (10, 3168690), (12, 2640575), (14, 2263350), (15, 2112460), (20, 1584345), (21, 1508900), (25, 1267476), (28, 1131675), (30, 1056230), (35, 905340), (42, 754450), (50, 633738), (60, 528115), (70, 452670), (75, 422492), (79, 401100), (84, 377225), (100, 316869), (105, 301780), (140, 226335), (150, 211246), (158, 200550), (175, 181068), (191, 165900), (210, 150890), (237, 133700), (300, 105623), (316, 100275), (350, 90534), (382, 82950), (395, 80220), (420, 75445), (474, 66850), (525, 60356), (553, 57300), (573, 55300), (700, 45267), (764, 41475), (790, 40110), (948, 33425), (955, 33180), (1050, 30178), (1106, 28650), (1146, 27650), (1185, 26740), (1337, 23700), (1580, 20055), (1659, 19100), (1910, 16590), (1975, 16044), (2100, 15089), (2212, 14325), (2292, 13825), (2370, 13370), (2674, 11850), (2765, 11460), (2865, 11060), (3318, 9550), (3820, 8295), (3950, 8022), (4011, 7900), (4740, 6685), (4775, 6636), (5348, 5925), (5530, 5730)]