1221120256

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{153871}}^1$

素因数の和:153918

約数の個数: 36

約数和(自身を含む): 2516114944

約数和(自身を除く): 1294994688

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 992, 1984, 3968, 7936, 153871, 307742, 615484, 1230968, 2461936, 4770001, 4923872, 9540002, 9847744, 19080004, 19695488, 38160008, 39390976, 76320016, 152640032, 305280064, 610560128, 1221120256]

約数ペア:

[(1, 1221120256), (2, 610560128), (4, 305280064), (8, 152640032), (16, 76320016), (31, 39390976), (32, 38160008), (62, 19695488), (64, 19080004), (124, 9847744), (128, 9540002), (248, 4923872), (256, 4770001), (496, 2461936), (992, 1230968), (1984, 615484), (3968, 307742), (7936, 153871)]