138889856

素因数分解:

$2^7\times 7^1\times {\mathrm{379}}^1\times {\mathrm{409}}^1$

素因数の和:809

約数の個数: 64

約数和(自身を含む): 317832000

約数和(自身を除く): 178942144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 379, 409, 448, 758, 818, 896, 1516, 1636, 2653, 2863, 3032, 3272, 5306, 5726, 6064, 6544, 10612, 11452, 12128, 13088, 21224, 22904, 24256, 26176, 42448, 45808, 48512, 52352, 84896, 91616, 155011, 169792, 183232, 310022, 339584, 366464, 620044, 1085077, 1240088, 2170154, 2480176, 4340308, 4960352, 8680616, 9920704, 17361232, 19841408, 34722464, 69444928, 138889856]

約数ペア:

[(1, 138889856), (2, 69444928), (4, 34722464), (7, 19841408), (8, 17361232), (14, 9920704), (16, 8680616), (28, 4960352), (32, 4340308), (56, 2480176), (64, 2170154), (112, 1240088), (128, 1085077), (224, 620044), (379, 366464), (409, 339584), (448, 310022), (758, 183232), (818, 169792), (896, 155011), (1516, 91616), (1636, 84896), (2653, 52352), (2863, 48512), (3032, 45808), (3272, 42448), (5306, 26176), (5726, 24256), (6064, 22904), (6544, 21224), (10612, 13088), (11452, 12128)]