81898208

素因数分解:

$2^5\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2749}}^1$

素因数の和:2792

約数の個数: 72

約数和(自身を含む): 197505000

約数和(自身を除く): 115606792

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 49, 56, 76, 98, 112, 133, 152, 196, 224, 266, 304, 392, 532, 608, 784, 931, 1064, 1568, 1862, 2128, 2749, 3724, 4256, 5498, 7448, 10996, 14896, 19243, 21992, 29792, 38486, 43984, 52231, 76972, 87968, 104462, 134701, 153944, 208924, 269402, 307888, 365617, 417848, 538804, 615776, 731234, 835696, 1077608, 1462468, 1671392, 2155216, 2559319, 2924936, 4310432, 5118638, 5849872, 10237276, 11699744, 20474552, 40949104, 81898208]

約数ペア:

[(1, 81898208), (2, 40949104), (4, 20474552), (7, 11699744), (8, 10237276), (14, 5849872), (16, 5118638), (19, 4310432), (28, 2924936), (32, 2559319), (38, 2155216), (49, 1671392), (56, 1462468), (76, 1077608), (98, 835696), (112, 731234), (133, 615776), (152, 538804), (196, 417848), (224, 365617), (266, 307888), (304, 269402), (392, 208924), (532, 153944), (608, 134701), (784, 104462), (931, 87968), (1064, 76972), (1568, 52231), (1862, 43984), (2128, 38486), (2749, 29792), (3724, 21992), (4256, 19243), (5498, 14896), (7448, 10996)]