28153620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{241}}^1$

素因数の和:326

約数の個数: 144

約数和(自身を含む): 95135040

約数和(自身を除く): 66981420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 59, 60, 66, 90, 99, 110, 118, 132, 165, 177, 180, 198, 220, 236, 241, 295, 330, 354, 396, 482, 495, 531, 590, 649, 660, 708, 723, 885, 964, 990, 1062, 1180, 1205, 1298, 1446, 1770, 1947, 1980, 2124, 2169, 2410, 2596, 2651, 2655, 2892, 3245, 3540, 3615, 3894, 4338, 4820, 5302, 5310, 5841, 6490, 7230, 7788, 7953, 8676, 9735, 10604, 10620, 10845, 11682, 12980, 13255, 14219, 14460, 15906, 19470, 21690, 23364, 23859, 26510, 28438, 29205, 31812, 38940, 39765, 42657, 43380, 47718, 53020, 56876, 58410, 71095, 79530, 85314, 95436, 116820, 119295, 127971, 142190, 156409, 159060, 170628, 213285, 238590, 255942, 284380, 312818, 426570, 469227, 477180, 511884, 625636, 639855, 782045, 853140, 938454, 1279710, 1407681, 1564090, 1876908, 2346135, 2559420, 2815362, 3128180, 4692270, 5630724, 7038405, 9384540, 14076810, 28153620]

約数ペア:

[(1, 28153620), (2, 14076810), (3, 9384540), (4, 7038405), (5, 5630724), (6, 4692270), (9, 3128180), (10, 2815362), (11, 2559420), (12, 2346135), (15, 1876908), (18, 1564090), (20, 1407681), (22, 1279710), (30, 938454), (33, 853140), (36, 782045), (44, 639855), (45, 625636), (55, 511884), (59, 477180), (60, 469227), (66, 426570), (90, 312818), (99, 284380), (110, 255942), (118, 238590), (132, 213285), (165, 170628), (177, 159060), (180, 156409), (198, 142190), (220, 127971), (236, 119295), (241, 116820), (295, 95436), (330, 85314), (354, 79530), (396, 71095), (482, 58410), (495, 56876), (531, 53020), (590, 47718), (649, 43380), (660, 42657), (708, 39765), (723, 38940), (885, 31812), (964, 29205), (990, 28438), (1062, 26510), (1180, 23859), (1205, 23364), (1298, 21690), (1446, 19470), (1770, 15906), (1947, 14460), (1980, 14219), (2124, 13255), (2169, 12980), (2410, 11682), (2596, 10845), (2651, 10620), (2655, 10604), (2892, 9735), (3245, 8676), (3540, 7953), (3615, 7788), (3894, 7230), (4338, 6490), (4820, 5841), (5302, 5310)]