20113792

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 42791040

約数和(自身を除く): 22677248

約数列:

[1, 2, 4, 8, 16, 31, 32, 37, 62, 64, 74, 124, 128, 137, 148, 248, 274, 296, 496, 548, 592, 992, 1096, 1147, 1184, 1984, 2192, 2294, 2368, 3968, 4247, 4384, 4588, 4736, 5069, 8494, 8768, 9176, 10138, 16988, 17536, 18352, 20276, 33976, 36704, 40552, 67952, 73408, 81104, 135904, 146816, 157139, 162208, 271808, 314278, 324416, 543616, 628556, 648832, 1257112, 2514224, 5028448, 10056896, 20113792]

約数ペア:

[(1, 20113792), (2, 10056896), (4, 5028448), (8, 2514224), (16, 1257112), (31, 648832), (32, 628556), (37, 543616), (62, 324416), (64, 314278), (74, 271808), (124, 162208), (128, 157139), (137, 146816), (148, 135904), (248, 81104), (274, 73408), (296, 67952), (496, 40552), (548, 36704), (592, 33976), (992, 20276), (1096, 18352), (1147, 17536), (1184, 16988), (1984, 10138), (2192, 9176), (2294, 8768), (2368, 8494), (3968, 5069), (4247, 4736), (4384, 4588)]