809809408

素因数分解:

$2^9\times {\mathrm{79}}^1\times {\mathrm{20021}}^1$

素因数の和:20118

約数の個数: 40

約数和(自身を含む): 1638600480

約数和(自身を除く): 828791072

約数列:

[1, 2, 4, 8, 16, 32, 64, 79, 128, 158, 256, 316, 512, 632, 1264, 2528, 5056, 10112, 20021, 20224, 40042, 40448, 80084, 160168, 320336, 640672, 1281344, 1581659, 2562688, 3163318, 5125376, 6326636, 10250752, 12653272, 25306544, 50613088, 101226176, 202452352, 404904704, 809809408]

約数ペア:

[(1, 809809408), (2, 404904704), (4, 202452352), (8, 101226176), (16, 50613088), (32, 25306544), (64, 12653272), (79, 10250752), (128, 6326636), (158, 5125376), (256, 3163318), (316, 2562688), (512, 1581659), (632, 1281344), (1264, 640672), (2528, 320336), (5056, 160168), (10112, 80084), (20021, 40448), (20224, 40042)]