20132080

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:274

約数の個数: 80

約数和(自身を含む): 50380704

約数和(自身を除く): 30248624

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 113, 131, 136, 170, 226, 262, 272, 340, 452, 524, 565, 655, 680, 904, 1048, 1130, 1310, 1360, 1808, 1921, 2096, 2227, 2260, 2620, 3842, 4454, 4520, 5240, 7684, 8908, 9040, 9605, 10480, 11135, 14803, 15368, 17816, 19210, 22270, 29606, 30736, 35632, 38420, 44540, 59212, 74015, 76840, 89080, 118424, 148030, 153680, 178160, 236848, 251651, 296060, 503302, 592120, 1006604, 1184240, 1258255, 2013208, 2516510, 4026416, 5033020, 10066040, 20132080]

約数ペア:

[(1, 20132080), (2, 10066040), (4, 5033020), (5, 4026416), (8, 2516510), (10, 2013208), (16, 1258255), (17, 1184240), (20, 1006604), (34, 592120), (40, 503302), (68, 296060), (80, 251651), (85, 236848), (113, 178160), (131, 153680), (136, 148030), (170, 118424), (226, 89080), (262, 76840), (272, 74015), (340, 59212), (452, 44540), (524, 38420), (565, 35632), (655, 30736), (680, 29606), (904, 22270), (1048, 19210), (1130, 17816), (1310, 15368), (1360, 14803), (1808, 11135), (1921, 10480), (2096, 9605), (2227, 9040), (2260, 8908), (2620, 7684), (3842, 5240), (4454, 4520)]