78515980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{367}}^1\times {\mathrm{563}}^1$

素因数の和:958

約数の個数: 48

約数和(自身を含む): 174343680

約数和(自身を除く): 95827700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 367, 380, 563, 734, 1126, 1468, 1835, 2252, 2815, 3670, 5630, 6973, 7340, 10697, 11260, 13946, 21394, 27892, 34865, 42788, 53485, 69730, 106970, 139460, 206621, 213940, 413242, 826484, 1033105, 2066210, 3925799, 4132420, 7851598, 15703196, 19628995, 39257990, 78515980]

約数ペア:

[(1, 78515980), (2, 39257990), (4, 19628995), (5, 15703196), (10, 7851598), (19, 4132420), (20, 3925799), (38, 2066210), (76, 1033105), (95, 826484), (190, 413242), (367, 213940), (380, 206621), (563, 139460), (734, 106970), (1126, 69730), (1468, 53485), (1835, 42788), (2252, 34865), (2815, 27892), (3670, 21394), (5630, 13946), (6973, 11260), (7340, 10697)]