25718140

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:216

約数の個数: 96

約数和(自身を含む): 66124800

約数和(自身を除く): 40406660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 163, 196, 230, 245, 322, 326, 343, 460, 490, 644, 652, 686, 805, 815, 980, 1127, 1141, 1372, 1610, 1630, 1715, 2254, 2282, 3220, 3260, 3430, 3749, 4508, 4564, 5635, 5705, 6860, 7498, 7889, 7987, 11270, 11410, 14996, 15778, 15974, 18745, 22540, 22820, 26243, 31556, 31948, 37490, 39445, 39935, 52486, 55909, 74980, 78890, 79870, 104972, 111818, 131215, 157780, 159740, 183701, 223636, 262430, 279545, 367402, 524860, 559090, 734804, 918505, 1118180, 1285907, 1837010, 2571814, 3674020, 5143628, 6429535, 12859070, 25718140]

約数ペア:

[(1, 25718140), (2, 12859070), (4, 6429535), (5, 5143628), (7, 3674020), (10, 2571814), (14, 1837010), (20, 1285907), (23, 1118180), (28, 918505), (35, 734804), (46, 559090), (49, 524860), (70, 367402), (92, 279545), (98, 262430), (115, 223636), (140, 183701), (161, 159740), (163, 157780), (196, 131215), (230, 111818), (245, 104972), (322, 79870), (326, 78890), (343, 74980), (460, 55909), (490, 52486), (644, 39935), (652, 39445), (686, 37490), (805, 31948), (815, 31556), (980, 26243), (1127, 22820), (1141, 22540), (1372, 18745), (1610, 15974), (1630, 15778), (1715, 14996), (2254, 11410), (2282, 11270), (3220, 7987), (3260, 7889), (3430, 7498), (3749, 6860), (4508, 5705), (4564, 5635)]