28405728

素因数分解:

$2^5\times 3^5\times {\mathrm{13}}^1\times {\mathrm{281}}^1$

素因数の和:319

約数の個数: 144

約数和(自身を含む): 90535536

約数和(自身を除く): 62129808

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 72, 78, 81, 96, 104, 108, 117, 144, 156, 162, 208, 216, 234, 243, 281, 288, 312, 324, 351, 416, 432, 468, 486, 562, 624, 648, 702, 843, 864, 936, 972, 1053, 1124, 1248, 1296, 1404, 1686, 1872, 1944, 2106, 2248, 2529, 2592, 2808, 3159, 3372, 3653, 3744, 3888, 4212, 4496, 5058, 5616, 6318, 6744, 7306, 7587, 7776, 8424, 8992, 10116, 10959, 11232, 12636, 13488, 14612, 15174, 16848, 20232, 21918, 22761, 25272, 26976, 29224, 30348, 32877, 33696, 40464, 43836, 45522, 50544, 58448, 60696, 65754, 68283, 80928, 87672, 91044, 98631, 101088, 116896, 121392, 131508, 136566, 175344, 182088, 197262, 242784, 263016, 273132, 295893, 350688, 364176, 394524, 526032, 546264, 591786, 728352, 789048, 887679, 1052064, 1092528, 1183572, 1578096, 1775358, 2185056, 2367144, 3156192, 3550716, 4734288, 7101432, 9468576, 14202864, 28405728]

約数ペア:

[(1, 28405728), (2, 14202864), (3, 9468576), (4, 7101432), (6, 4734288), (8, 3550716), (9, 3156192), (12, 2367144), (13, 2185056), (16, 1775358), (18, 1578096), (24, 1183572), (26, 1092528), (27, 1052064), (32, 887679), (36, 789048), (39, 728352), (48, 591786), (52, 546264), (54, 526032), (72, 394524), (78, 364176), (81, 350688), (96, 295893), (104, 273132), (108, 263016), (117, 242784), (144, 197262), (156, 182088), (162, 175344), (208, 136566), (216, 131508), (234, 121392), (243, 116896), (281, 101088), (288, 98631), (312, 91044), (324, 87672), (351, 80928), (416, 68283), (432, 65754), (468, 60696), (486, 58448), (562, 50544), (624, 45522), (648, 43836), (702, 40464), (843, 33696), (864, 32877), (936, 30348), (972, 29224), (1053, 26976), (1124, 25272), (1248, 22761), (1296, 21918), (1404, 20232), (1686, 16848), (1872, 15174), (1944, 14612), (2106, 13488), (2248, 12636), (2529, 11232), (2592, 10959), (2808, 10116), (3159, 8992), (3372, 8424), (3653, 7776), (3744, 7587), (3888, 7306), (4212, 6744), (4496, 6318), (5058, 5616)]