78671728

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{547}}^1$

素因数の和:745

約数の個数: 40

約数和(自身を含む): 155949840

約数和(自身を除く): 77278112

約数列:

[1, 2, 4, 8, 16, 89, 101, 178, 202, 356, 404, 547, 712, 808, 1094, 1424, 1616, 2188, 4376, 8752, 8989, 17978, 35956, 48683, 55247, 71912, 97366, 110494, 143824, 194732, 220988, 389464, 441976, 778928, 883952, 4916983, 9833966, 19667932, 39335864, 78671728]

約数ペア:

[(1, 78671728), (2, 39335864), (4, 19667932), (8, 9833966), (16, 4916983), (89, 883952), (101, 778928), (178, 441976), (202, 389464), (356, 220988), (404, 194732), (547, 143824), (712, 110494), (808, 97366), (1094, 71912), (1424, 55247), (1616, 48683), (2188, 35956), (4376, 17978), (8752, 8989)]