71919380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8923}}^1$

素因数の和:8976

約数の個数: 48

約数和(自身を含む): 167913984

約数和(自身を除く): 95994604

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 8923, 17846, 35692, 44615, 89230, 115999, 178460, 231998, 276613, 463996, 553226, 579995, 1106452, 1159990, 1383065, 2319980, 2766130, 3595969, 5532260, 7191938, 14383876, 17979845, 35959690, 71919380]

約数ペア:

[(1, 71919380), (2, 35959690), (4, 17979845), (5, 14383876), (10, 7191938), (13, 5532260), (20, 3595969), (26, 2766130), (31, 2319980), (52, 1383065), (62, 1159990), (65, 1106452), (124, 579995), (130, 553226), (155, 463996), (260, 276613), (310, 231998), (403, 178460), (620, 115999), (806, 89230), (1612, 44615), (2015, 35692), (4030, 17846), (8060, 8923)]