20005504

素因数分解:

$2^7\times {\mathrm{73}}^1\times {\mathrm{2141}}^1$

素因数の和:2228

約数の個数: 32

約数和(自身を含む): 40419540

約数和(自身を除く): 20414036

約数列:

[1, 2, 4, 8, 16, 32, 64, 73, 128, 146, 292, 584, 1168, 2141, 2336, 4282, 4672, 8564, 9344, 17128, 34256, 68512, 137024, 156293, 274048, 312586, 625172, 1250344, 2500688, 5001376, 10002752, 20005504]

約数ペア:

[(1, 20005504), (2, 10002752), (4, 5001376), (8, 2500688), (16, 1250344), (32, 625172), (64, 312586), (73, 274048), (128, 156293), (146, 137024), (292, 68512), (584, 34256), (1168, 17128), (2141, 9344), (2336, 8564), (4282, 4672)]