81681210

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7757}}^1$

素因数の和:7789

約数の個数: 80

約数和(自身を含む): 236556936

約数和(自身を除く): 154875726

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 81, 90, 117, 130, 135, 162, 195, 234, 270, 351, 390, 405, 585, 702, 810, 1053, 1170, 1755, 2106, 3510, 5265, 7757, 10530, 15514, 23271, 38785, 46542, 69813, 77570, 100841, 116355, 139626, 201682, 209439, 232710, 302523, 349065, 418878, 504205, 605046, 628317, 698130, 907569, 1008410, 1047195, 1256634, 1512615, 1815138, 2094390, 2722707, 3025230, 3141585, 4537845, 5445414, 6283170, 8168121, 9075690, 13613535, 16336242, 27227070, 40840605, 81681210]

約数ペア:

[(1, 81681210), (2, 40840605), (3, 27227070), (5, 16336242), (6, 13613535), (9, 9075690), (10, 8168121), (13, 6283170), (15, 5445414), (18, 4537845), (26, 3141585), (27, 3025230), (30, 2722707), (39, 2094390), (45, 1815138), (54, 1512615), (65, 1256634), (78, 1047195), (81, 1008410), (90, 907569), (117, 698130), (130, 628317), (135, 605046), (162, 504205), (195, 418878), (234, 349065), (270, 302523), (351, 232710), (390, 209439), (405, 201682), (585, 139626), (702, 116355), (810, 100841), (1053, 77570), (1170, 69813), (1755, 46542), (2106, 38785), (3510, 23271), (5265, 15514), (7757, 10530)]