30971140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{547}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 69048000

約数和(自身を除く): 38076860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 149, 190, 298, 380, 547, 596, 745, 1094, 1490, 2188, 2735, 2831, 2980, 5470, 5662, 10393, 10940, 11324, 14155, 20786, 28310, 41572, 51965, 56620, 81503, 103930, 163006, 207860, 326012, 407515, 815030, 1548557, 1630060, 3097114, 6194228, 7742785, 15485570, 30971140]

約数ペア:

[(1, 30971140), (2, 15485570), (4, 7742785), (5, 6194228), (10, 3097114), (19, 1630060), (20, 1548557), (38, 815030), (76, 407515), (95, 326012), (149, 207860), (190, 163006), (298, 103930), (380, 81503), (547, 56620), (596, 51965), (745, 41572), (1094, 28310), (1490, 20786), (2188, 14155), (2735, 11324), (2831, 10940), (2980, 10393), (5470, 5662)]