1009840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{971}}^1$

素因数の和:997

約数の個数: 40

約数和(自身を含む): 2531088

約数和(自身を除く): 1521248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 971, 1040, 1942, 3884, 4855, 7768, 9710, 12623, 15536, 19420, 25246, 38840, 50492, 63115, 77680, 100984, 126230, 201968, 252460, 504920, 1009840]

約数ペア:

[(1, 1009840), (2, 504920), (4, 252460), (5, 201968), (8, 126230), (10, 100984), (13, 77680), (16, 63115), (20, 50492), (26, 38840), (40, 25246), (52, 19420), (65, 15536), (80, 12623), (104, 9710), (130, 7768), (208, 4855), (260, 3884), (520, 1942), (971, 1040)]