20145793408

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{31123}}^1$

素因数の和:31539

約数の個数: 64

約数和(自身を含む): 43333945200

約数和(自身を除く): 23188151792

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 389, 416, 778, 832, 1556, 1664, 3112, 5057, 6224, 10114, 12448, 20228, 24896, 31123, 40456, 49792, 62246, 80912, 124492, 161824, 248984, 323648, 404599, 497968, 647296, 809198, 995936, 1618396, 1991872, 3236792, 3983744, 6473584, 12106847, 12947168, 24213694, 25894336, 48427388, 51788672, 96854776, 157389011, 193709552, 314778022, 387419104, 629556044, 774838208, 1259112088, 1549676416, 2518224176, 5036448352, 10072896704, 20145793408]

約数ペア:

[(1, 20145793408), (2, 10072896704), (4, 5036448352), (8, 2518224176), (13, 1549676416), (16, 1259112088), (26, 774838208), (32, 629556044), (52, 387419104), (64, 314778022), (104, 193709552), (128, 157389011), (208, 96854776), (389, 51788672), (416, 48427388), (778, 25894336), (832, 24213694), (1556, 12947168), (1664, 12106847), (3112, 6473584), (5057, 3983744), (6224, 3236792), (10114, 1991872), (12448, 1618396), (20228, 995936), (24896, 809198), (31123, 647296), (40456, 497968), (49792, 404599), (62246, 323648), (80912, 248984), (124492, 161824)]