40206920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{463}}^1$

素因数の和:654

約数の個数: 64

約数和(自身を含む): 98219520

約数和(自身を除く): 58012600

約数列:

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

約数ペア:

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