81430258

素因数分解:

$2^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1$

素因数の和:456

約数の個数: 64

約数和(自身を含む): 160473600

約数和(自身を除く): 79043342

約数列:

[1, 2, 7, 13, 14, 23, 26, 46, 49, 91, 98, 161, 182, 299, 322, 343, 397, 598, 637, 686, 794, 1127, 1274, 2093, 2254, 2779, 4186, 4459, 5161, 5558, 7889, 8918, 9131, 10322, 14651, 15778, 18262, 19453, 29302, 36127, 38906, 63917, 72254, 102557, 118703, 127834, 136171, 205114, 237406, 252889, 272342, 447419, 505778, 830921, 894838, 1661842, 1770223, 3131933, 3540446, 5816447, 6263866, 11632894, 40715129, 81430258]

約数ペア:

[(1, 81430258), (2, 40715129), (7, 11632894), (13, 6263866), (14, 5816447), (23, 3540446), (26, 3131933), (46, 1770223), (49, 1661842), (91, 894838), (98, 830921), (161, 505778), (182, 447419), (299, 272342), (322, 252889), (343, 237406), (397, 205114), (598, 136171), (637, 127834), (686, 118703), (794, 102557), (1127, 72254), (1274, 63917), (2093, 38906), (2254, 36127), (2779, 29302), (4186, 19453), (4459, 18262), (5161, 15778), (5558, 14651), (7889, 10322), (8918, 9131)]