20455704

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^2\times {\mathrm{787}}^1$

素因数の和:837

約数の個数: 72

約数和(自身を含む): 58544460

約数和(自身を除く): 38088756

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 361, 456, 684, 722, 787, 1083, 1368, 1444, 1574, 2166, 2361, 2888, 3148, 3249, 4332, 4722, 6296, 6498, 7083, 8664, 9444, 12996, 14166, 14953, 18888, 25992, 28332, 29906, 44859, 56664, 59812, 89718, 119624, 134577, 179436, 269154, 284107, 358872, 538308, 568214, 852321, 1076616, 1136428, 1704642, 2272856, 2556963, 3409284, 5113926, 6818568, 10227852, 20455704]

約数ペア:

[(1, 20455704), (2, 10227852), (3, 6818568), (4, 5113926), (6, 3409284), (8, 2556963), (9, 2272856), (12, 1704642), (18, 1136428), (19, 1076616), (24, 852321), (36, 568214), (38, 538308), (57, 358872), (72, 284107), (76, 269154), (114, 179436), (152, 134577), (171, 119624), (228, 89718), (342, 59812), (361, 56664), (456, 44859), (684, 29906), (722, 28332), (787, 25992), (1083, 18888), (1368, 14953), (1444, 14166), (1574, 12996), (2166, 9444), (2361, 8664), (2888, 7083), (3148, 6498), (3249, 6296), (4332, 4722)]