1239800450

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{643}}^1\times {\mathrm{787}}^1$

素因数の和:1456

約数の個数: 72

約数和(自身を含む): 2690109072

約数和(自身を除く): 1450308622

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 175, 245, 350, 490, 643, 787, 1225, 1286, 1574, 2450, 3215, 3935, 4501, 5509, 6430, 7870, 9002, 11018, 16075, 19675, 22505, 27545, 31507, 32150, 38563, 39350, 45010, 55090, 63014, 77126, 112525, 137725, 157535, 192815, 225050, 275450, 315070, 385630, 506041, 787675, 964075, 1012082, 1575350, 1928150, 2530205, 3542287, 5060410, 7084574, 12651025, 17711435, 24796009, 25302050, 35422870, 49592018, 88557175, 123980045, 177114350, 247960090, 619900225, 1239800450]

約数ペア:

[(1, 1239800450), (2, 619900225), (5, 247960090), (7, 177114350), (10, 123980045), (14, 88557175), (25, 49592018), (35, 35422870), (49, 25302050), (50, 24796009), (70, 17711435), (98, 12651025), (175, 7084574), (245, 5060410), (350, 3542287), (490, 2530205), (643, 1928150), (787, 1575350), (1225, 1012082), (1286, 964075), (1574, 787675), (2450, 506041), (3215, 385630), (3935, 315070), (4501, 275450), (5509, 225050), (6430, 192815), (7870, 157535), (9002, 137725), (11018, 112525), (16075, 77126), (19675, 63014), (22505, 55090), (27545, 45010), (31507, 39350), (32150, 38563)]