63789140

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:488

約数の個数: 48

約数和(自身を含む): 136914624

約数和(自身を除く): 73125484

約数列:

[1, 2, 4, 5, 10, 20, 97, 131, 194, 251, 262, 388, 485, 502, 524, 655, 970, 1004, 1255, 1310, 1940, 2510, 2620, 5020, 12707, 24347, 25414, 32881, 48694, 50828, 63535, 65762, 97388, 121735, 127070, 131524, 164405, 243470, 254140, 328810, 486940, 657620, 3189457, 6378914, 12757828, 15947285, 31894570, 63789140]

約数ペア:

[(1, 63789140), (2, 31894570), (4, 15947285), (5, 12757828), (10, 6378914), (20, 3189457), (97, 657620), (131, 486940), (194, 328810), (251, 254140), (262, 243470), (388, 164405), (485, 131524), (502, 127070), (524, 121735), (655, 97388), (970, 65762), (1004, 63535), (1255, 50828), (1310, 48694), (1940, 32881), (2510, 25414), (2620, 24347), (5020, 12707)]