30778660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4513}}^1$

素因数の和:4564

約数の個数: 48

約数和(自身を含む): 72801792

約数和(自身を除く): 42023132

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 4513, 6820, 9026, 18052, 22565, 45130, 49643, 90260, 99286, 139903, 198572, 248215, 279806, 496430, 559612, 699515, 992860, 1399030, 1538933, 2798060, 3077866, 6155732, 7694665, 15389330, 30778660]

約数ペア:

[(1, 30778660), (2, 15389330), (4, 7694665), (5, 6155732), (10, 3077866), (11, 2798060), (20, 1538933), (22, 1399030), (31, 992860), (44, 699515), (55, 559612), (62, 496430), (110, 279806), (124, 248215), (155, 198572), (220, 139903), (310, 99286), (341, 90260), (620, 49643), (682, 45130), (1364, 22565), (1705, 18052), (3410, 9026), (4513, 6820)]