7821090

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{349}}^1$

素因数の和:448

約数の個数: 64

約数和(自身を含む): 21168000

約数和(自身を除く): 13346910

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 83, 90, 135, 166, 249, 270, 349, 415, 498, 698, 747, 830, 1047, 1245, 1494, 1745, 2094, 2241, 2490, 3141, 3490, 3735, 4482, 5235, 6282, 7470, 9423, 10470, 11205, 15705, 18846, 22410, 28967, 31410, 47115, 57934, 86901, 94230, 144835, 173802, 260703, 289670, 434505, 521406, 782109, 869010, 1303515, 1564218, 2607030, 3910545, 7821090]

約数ペア:

[(1, 7821090), (2, 3910545), (3, 2607030), (5, 1564218), (6, 1303515), (9, 869010), (10, 782109), (15, 521406), (18, 434505), (27, 289670), (30, 260703), (45, 173802), (54, 144835), (83, 94230), (90, 86901), (135, 57934), (166, 47115), (249, 31410), (270, 28967), (349, 22410), (415, 18846), (498, 15705), (698, 11205), (747, 10470), (830, 9423), (1047, 7470), (1245, 6282), (1494, 5235), (1745, 4482), (2094, 3735), (2241, 3490), (2490, 3141)]