31319330

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{397}}^1$

素因数の和:448

約数の個数: 64

約数和(自身を含む): 68774400

約数和(自身を除く): 37455070

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 49, 70, 98, 115, 161, 230, 245, 322, 343, 397, 490, 686, 794, 805, 1127, 1610, 1715, 1985, 2254, 2779, 3430, 3970, 5558, 5635, 7889, 9131, 11270, 13895, 15778, 18262, 19453, 27790, 38906, 39445, 45655, 63917, 78890, 91310, 97265, 127834, 136171, 194530, 272342, 319585, 447419, 639170, 680855, 894838, 1361710, 2237095, 3131933, 4474190, 6263866, 15659665, 31319330]

約数ペア:

[(1, 31319330), (2, 15659665), (5, 6263866), (7, 4474190), (10, 3131933), (14, 2237095), (23, 1361710), (35, 894838), (46, 680855), (49, 639170), (70, 447419), (98, 319585), (115, 272342), (161, 194530), (230, 136171), (245, 127834), (322, 97265), (343, 91310), (397, 78890), (490, 63917), (686, 45655), (794, 39445), (805, 38906), (1127, 27790), (1610, 19453), (1715, 18262), (1985, 15778), (2254, 13895), (2779, 11270), (3430, 9131), (3970, 7889), (5558, 5635)]