80413840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{463}}^1$

素因数の和:656

約数の個数: 80

約数和(自身を含む): 202987008

約数和(自身を除く): 122573168

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 167, 208, 260, 334, 463, 520, 668, 835, 926, 1040, 1336, 1670, 1852, 2171, 2315, 2672, 3340, 3704, 4342, 4630, 6019, 6680, 7408, 8684, 9260, 10855, 12038, 13360, 17368, 18520, 21710, 24076, 30095, 34736, 37040, 43420, 48152, 60190, 77321, 86840, 96304, 120380, 154642, 173680, 240760, 309284, 386605, 481520, 618568, 773210, 1005173, 1237136, 1546420, 2010346, 3092840, 4020692, 5025865, 6185680, 8041384, 10051730, 16082768, 20103460, 40206920, 80413840]

約数ペア:

[(1, 80413840), (2, 40206920), (4, 20103460), (5, 16082768), (8, 10051730), (10, 8041384), (13, 6185680), (16, 5025865), (20, 4020692), (26, 3092840), (40, 2010346), (52, 1546420), (65, 1237136), (80, 1005173), (104, 773210), (130, 618568), (167, 481520), (208, 386605), (260, 309284), (334, 240760), (463, 173680), (520, 154642), (668, 120380), (835, 96304), (926, 86840), (1040, 77321), (1336, 60190), (1670, 48152), (1852, 43420), (2171, 37040), (2315, 34736), (2672, 30095), (3340, 24076), (3704, 21710), (4342, 18520), (4630, 17368), (6019, 13360), (6680, 12038), (7408, 10855), (8684, 9260)]