137489740

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1\times {\mathrm{541}}^1$

素因数の和:778

約数の個数: 48

約数和(自身を含む): 294475104

約数和(自身を除く): 156985364

約数列:

[1, 2, 4, 5, 10, 20, 97, 131, 194, 262, 388, 485, 524, 541, 655, 970, 1082, 1310, 1940, 2164, 2620, 2705, 5410, 10820, 12707, 25414, 50828, 52477, 63535, 70871, 104954, 127070, 141742, 209908, 254140, 262385, 283484, 354355, 524770, 708710, 1049540, 1417420, 6874487, 13748974, 27497948, 34372435, 68744870, 137489740]

約数ペア:

[(1, 137489740), (2, 68744870), (4, 34372435), (5, 27497948), (10, 13748974), (20, 6874487), (97, 1417420), (131, 1049540), (194, 708710), (262, 524770), (388, 354355), (485, 283484), (524, 262385), (541, 254140), (655, 209908), (970, 141742), (1082, 127070), (1310, 104954), (1940, 70871), (2164, 63535), (2620, 52477), (2705, 50828), (5410, 25414), (10820, 12707)]