20745632

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:501

約数の個数: 48

約数和(自身を含む): 43327872

約数和(自身を除く): 22582240

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 71, 92, 142, 184, 284, 368, 397, 568, 736, 794, 1136, 1588, 1633, 2272, 3176, 3266, 6352, 6532, 9131, 12704, 13064, 18262, 26128, 28187, 36524, 52256, 56374, 73048, 112748, 146096, 225496, 292192, 450992, 648301, 901984, 1296602, 2593204, 5186408, 10372816, 20745632]

約数ペア:

[(1, 20745632), (2, 10372816), (4, 5186408), (8, 2593204), (16, 1296602), (23, 901984), (32, 648301), (46, 450992), (71, 292192), (92, 225496), (142, 146096), (184, 112748), (284, 73048), (368, 56374), (397, 52256), (568, 36524), (736, 28187), (794, 26128), (1136, 18262), (1588, 13064), (1633, 12704), (2272, 9131), (3176, 6532), (3266, 6352)]