20854656

素因数分解:

$2^7\times 3^2\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:484

約数の個数: 96

約数和(自身を含む): 61552920

約数和(自身を除く): 40698264

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 43, 48, 64, 72, 86, 96, 128, 129, 144, 172, 192, 258, 288, 344, 384, 387, 421, 516, 576, 688, 774, 842, 1032, 1152, 1263, 1376, 1548, 1684, 2064, 2526, 2752, 3096, 3368, 3789, 4128, 5052, 5504, 6192, 6736, 7578, 8256, 10104, 12384, 13472, 15156, 16512, 18103, 20208, 24768, 26944, 30312, 36206, 40416, 49536, 53888, 54309, 60624, 72412, 80832, 108618, 121248, 144824, 161664, 162927, 217236, 242496, 289648, 325854, 434472, 484992, 579296, 651708, 868944, 1158592, 1303416, 1737888, 2317184, 2606832, 3475776, 5213664, 6951552, 10427328, 20854656]

約数ペア:

[(1, 20854656), (2, 10427328), (3, 6951552), (4, 5213664), (6, 3475776), (8, 2606832), (9, 2317184), (12, 1737888), (16, 1303416), (18, 1158592), (24, 868944), (32, 651708), (36, 579296), (43, 484992), (48, 434472), (64, 325854), (72, 289648), (86, 242496), (96, 217236), (128, 162927), (129, 161664), (144, 144824), (172, 121248), (192, 108618), (258, 80832), (288, 72412), (344, 60624), (384, 54309), (387, 53888), (421, 49536), (516, 40416), (576, 36206), (688, 30312), (774, 26944), (842, 24768), (1032, 20208), (1152, 18103), (1263, 16512), (1376, 15156), (1548, 13472), (1684, 12384), (2064, 10104), (2526, 8256), (2752, 7578), (3096, 6736), (3368, 6192), (3789, 5504), (4128, 5052)]