20883584

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{277}}^1$

素因数の和:341

約数の個数: 64

約数和(自身を含む): 45369600

約数和(自身を除く): 24486016

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 64, 76, 124, 128, 152, 248, 277, 304, 496, 554, 589, 608, 992, 1108, 1178, 1216, 1984, 2216, 2356, 2432, 3968, 4432, 4712, 5263, 8587, 8864, 9424, 10526, 17174, 17728, 18848, 21052, 34348, 35456, 37696, 42104, 68696, 75392, 84208, 137392, 163153, 168416, 274784, 326306, 336832, 549568, 652612, 673664, 1099136, 1305224, 2610448, 5220896, 10441792, 20883584]

約数ペア:

[(1, 20883584), (2, 10441792), (4, 5220896), (8, 2610448), (16, 1305224), (19, 1099136), (31, 673664), (32, 652612), (38, 549568), (62, 336832), (64, 326306), (76, 274784), (124, 168416), (128, 163153), (152, 137392), (248, 84208), (277, 75392), (304, 68696), (496, 42104), (554, 37696), (589, 35456), (608, 34348), (992, 21052), (1108, 18848), (1178, 17728), (1216, 17174), (1984, 10526), (2216, 9424), (2356, 8864), (2432, 8587), (3968, 5263), (4432, 4712)]