78260120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{63113}}^1$

素因数の和:63155

約数の個数: 32

約数和(自身を含む): 181768320

約数和(自身を除く): 103508200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 63113, 126226, 252452, 315565, 504904, 631130, 1262260, 1956503, 2524520, 3913006, 7826012, 9782515, 15652024, 19565030, 39130060, 78260120]

約数ペア:

[(1, 78260120), (2, 39130060), (4, 19565030), (5, 15652024), (8, 9782515), (10, 7826012), (20, 3913006), (31, 2524520), (40, 1956503), (62, 1262260), (124, 631130), (155, 504904), (248, 315565), (310, 252452), (620, 126226), (1240, 63113)]