29999820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21739}}^1$

素因数の和:21774

約数の個数: 48

約数和(自身を含む): 87655680

約数和(自身を除く): 57655860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 21739, 43478, 65217, 86956, 108695, 130434, 217390, 260868, 326085, 434780, 499997, 652170, 999994, 1304340, 1499991, 1999988, 2499985, 2999982, 4999970, 5999964, 7499955, 9999940, 14999910, 29999820]

約数ペア:

[(1, 29999820), (2, 14999910), (3, 9999940), (4, 7499955), (5, 5999964), (6, 4999970), (10, 2999982), (12, 2499985), (15, 1999988), (20, 1499991), (23, 1304340), (30, 999994), (46, 652170), (60, 499997), (69, 434780), (92, 326085), (115, 260868), (138, 217390), (230, 130434), (276, 108695), (345, 86956), (460, 65217), (690, 43478), (1380, 21739)]