399279040

素因数分解:

$2^6\times 5^1\times {\mathrm{283}}^1\times {\mathrm{4409}}^1$

素因数の和:4709

約数の個数: 56

約数和(自身を含む): 954359280

約数和(自身を除く): 555080240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 283, 320, 566, 1132, 1415, 2264, 2830, 4409, 4528, 5660, 8818, 9056, 11320, 17636, 18112, 22045, 22640, 35272, 44090, 45280, 70544, 88180, 90560, 141088, 176360, 282176, 352720, 705440, 1247747, 1410880, 2495494, 4990988, 6238735, 9981976, 12477470, 19963952, 24954940, 39927904, 49909880, 79855808, 99819760, 199639520, 399279040]

約数ペア:

[(1, 399279040), (2, 199639520), (4, 99819760), (5, 79855808), (8, 49909880), (10, 39927904), (16, 24954940), (20, 19963952), (32, 12477470), (40, 9981976), (64, 6238735), (80, 4990988), (160, 2495494), (283, 1410880), (320, 1247747), (566, 705440), (1132, 352720), (1415, 282176), (2264, 176360), (2830, 141088), (4409, 90560), (4528, 88180), (5660, 70544), (8818, 45280), (9056, 44090), (11320, 35272), (17636, 22640), (18112, 22045)]