78471140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{18773}}^1$

素因数の和:18812

約数の個数: 48

約数和(自身を含む): 189241920

約数和(自身を除く): 110770780

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 18773, 37546, 75092, 93865, 187730, 206503, 356687, 375460, 413006, 713374, 826012, 1032515, 1426748, 1783435, 2065030, 3566870, 3923557, 4130060, 7133740, 7847114, 15694228, 19617785, 39235570, 78471140]

約数ペア:

[(1, 78471140), (2, 39235570), (4, 19617785), (5, 15694228), (10, 7847114), (11, 7133740), (19, 4130060), (20, 3923557), (22, 3566870), (38, 2065030), (44, 1783435), (55, 1426748), (76, 1032515), (95, 826012), (110, 713374), (190, 413006), (209, 375460), (220, 356687), (380, 206503), (418, 187730), (836, 93865), (1045, 75092), (2090, 37546), (4180, 18773)]