20458656

素因数分解:

$2^5\times 3^6\times {\mathrm{877}}^1$

素因数の和:905

約数の個数: 84

約数和(自身を含む): 60458202

約数和(自身を除く): 39999546

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 81, 96, 108, 144, 162, 216, 243, 288, 324, 432, 486, 648, 729, 864, 877, 972, 1296, 1458, 1754, 1944, 2592, 2631, 2916, 3508, 3888, 5262, 5832, 7016, 7776, 7893, 10524, 11664, 14032, 15786, 21048, 23328, 23679, 28064, 31572, 42096, 47358, 63144, 71037, 84192, 94716, 126288, 142074, 189432, 213111, 252576, 284148, 378864, 426222, 568296, 639333, 757728, 852444, 1136592, 1278666, 1704888, 2273184, 2557332, 3409776, 5114664, 6819552, 10229328, 20458656]

約数ペア:

[(1, 20458656), (2, 10229328), (3, 6819552), (4, 5114664), (6, 3409776), (8, 2557332), (9, 2273184), (12, 1704888), (16, 1278666), (18, 1136592), (24, 852444), (27, 757728), (32, 639333), (36, 568296), (48, 426222), (54, 378864), (72, 284148), (81, 252576), (96, 213111), (108, 189432), (144, 142074), (162, 126288), (216, 94716), (243, 84192), (288, 71037), (324, 63144), (432, 47358), (486, 42096), (648, 31572), (729, 28064), (864, 23679), (877, 23328), (972, 21048), (1296, 15786), (1458, 14032), (1754, 11664), (1944, 10524), (2592, 7893), (2631, 7776), (2916, 7016), (3508, 5832), (3888, 5262)]