28546780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{23399}}^1$

素因数の和:23469

約数の個数: 24

約数和(自身を含む): 60933600

約数和(自身を除く): 32386820

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 23399, 46798, 93596, 116995, 233990, 467980, 1427339, 2854678, 5709356, 7136695, 14273390, 28546780]

約数ペア:

[(1, 28546780), (2, 14273390), (4, 7136695), (5, 5709356), (10, 2854678), (20, 1427339), (61, 467980), (122, 233990), (244, 116995), (305, 93596), (610, 46798), (1220, 23399)]