287121250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{17669}}^1$

素因数の和:17704

約数の個数: 40

約数和(自身を含む): 579611340

約数和(自身を除く): 292490090

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1250, 1625, 3250, 8125, 16250, 17669, 35338, 88345, 176690, 229697, 441725, 459394, 883450, 1148485, 2208625, 2296970, 4417250, 5742425, 11043125, 11484850, 22086250, 28712125, 57424250, 143560625, 287121250]

約数ペア:

[(1, 287121250), (2, 143560625), (5, 57424250), (10, 28712125), (13, 22086250), (25, 11484850), (26, 11043125), (50, 5742425), (65, 4417250), (125, 2296970), (130, 2208625), (250, 1148485), (325, 883450), (625, 459394), (650, 441725), (1250, 229697), (1625, 176690), (3250, 88345), (8125, 35338), (16250, 17669)]