631249840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{606971}}^1$

素因数の和:606997

約数の個数: 40

約数和(自身を含む): 1580555088

約数和(自身を除く): 949305248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 606971, 1213942, 2427884, 3034855, 4855768, 6069710, 7890623, 9711536, 12139420, 15781246, 24278840, 31562492, 39453115, 48557680, 63124984, 78906230, 126249968, 157812460, 315624920, 631249840]

約数ペア:

[(1, 631249840), (2, 315624920), (4, 157812460), (5, 126249968), (8, 78906230), (10, 63124984), (13, 48557680), (16, 39453115), (20, 31562492), (26, 24278840), (40, 15781246), (52, 12139420), (65, 9711536), (80, 7890623), (104, 6069710), (130, 4855768), (208, 3034855), (260, 2427884), (520, 1213942), (1040, 606971)]