20482912

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{571}}^1$

素因数の和:659

約数の個数: 48

約数和(自身を含む): 43243200

約数和(自身を除く): 22760288

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 59, 76, 118, 152, 236, 304, 472, 571, 608, 944, 1121, 1142, 1888, 2242, 2284, 4484, 4568, 8968, 9136, 10849, 17936, 18272, 21698, 33689, 35872, 43396, 67378, 86792, 134756, 173584, 269512, 347168, 539024, 640091, 1078048, 1280182, 2560364, 5120728, 10241456, 20482912]

約数ペア:

[(1, 20482912), (2, 10241456), (4, 5120728), (8, 2560364), (16, 1280182), (19, 1078048), (32, 640091), (38, 539024), (59, 347168), (76, 269512), (118, 173584), (152, 134756), (236, 86792), (304, 67378), (472, 43396), (571, 35872), (608, 33689), (944, 21698), (1121, 18272), (1142, 17936), (1888, 10849), (2242, 9136), (2284, 8968), (4484, 4568)]