42930040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:520

約数の個数: 64

約数和(自身を含む): 101088000

約数和(自身を除く): 58157960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 89, 124, 155, 178, 248, 310, 356, 389, 445, 620, 712, 778, 890, 1240, 1556, 1780, 1945, 2759, 3112, 3560, 3890, 5518, 7780, 11036, 12059, 13795, 15560, 22072, 24118, 27590, 34621, 48236, 55180, 60295, 69242, 96472, 110360, 120590, 138484, 173105, 241180, 276968, 346210, 482360, 692420, 1073251, 1384840, 2146502, 4293004, 5366255, 8586008, 10732510, 21465020, 42930040]

約数ペア:

[(1, 42930040), (2, 21465020), (4, 10732510), (5, 8586008), (8, 5366255), (10, 4293004), (20, 2146502), (31, 1384840), (40, 1073251), (62, 692420), (89, 482360), (124, 346210), (155, 276968), (178, 241180), (248, 173105), (310, 138484), (356, 120590), (389, 110360), (445, 96472), (620, 69242), (712, 60295), (778, 55180), (890, 48236), (1240, 34621), (1556, 27590), (1780, 24118), (1945, 22072), (2759, 15560), (3112, 13795), (3560, 12059), (3890, 11036), (5518, 7780)]