31291648

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{3943}}^1$

素因数の和:3990

約数の個数: 36

約数和(自身を含む): 64492288

約数和(自身を除く): 33200640

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 992, 1984, 3943, 3968, 7886, 7936, 15772, 31544, 63088, 122233, 126176, 244466, 252352, 488932, 504704, 977864, 1009408, 1955728, 3911456, 7822912, 15645824, 31291648]

約数ペア:

[(1, 31291648), (2, 15645824), (4, 7822912), (8, 3911456), (16, 1955728), (31, 1009408), (32, 977864), (62, 504704), (64, 488932), (124, 252352), (128, 244466), (248, 126176), (256, 122233), (496, 63088), (992, 31544), (1984, 15772), (3943, 7936), (3968, 7886)]