20744704

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{1307}}^1$

素因数の和:1356

約数の個数: 40

約数和(自身を含む): 42818688

約数和(自身を除く): 22073984

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 512, 992, 1307, 1984, 2614, 3968, 5228, 7936, 10456, 15872, 20912, 40517, 41824, 81034, 83648, 162068, 167296, 324136, 334592, 648272, 669184, 1296544, 2593088, 5186176, 10372352, 20744704]

約数ペア:

[(1, 20744704), (2, 10372352), (4, 5186176), (8, 2593088), (16, 1296544), (31, 669184), (32, 648272), (62, 334592), (64, 324136), (124, 167296), (128, 162068), (248, 83648), (256, 81034), (496, 41824), (512, 40517), (992, 20912), (1307, 15872), (1984, 10456), (2614, 7936), (3968, 5228)]