128501730

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{203971}}^1$

素因数の和:203991

約数の個数: 48

約数和(自身を含む): 381835584

約数和(自身を除く): 253333854

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 203971, 407942, 611913, 1019855, 1223826, 1427797, 1835739, 2039710, 2855594, 3059565, 3671478, 4283391, 6119130, 7138985, 8566782, 9178695, 12850173, 14277970, 18357390, 21416955, 25700346, 42833910, 64250865, 128501730]

約数ペア:

[(1, 128501730), (2, 64250865), (3, 42833910), (5, 25700346), (6, 21416955), (7, 18357390), (9, 14277970), (10, 12850173), (14, 9178695), (15, 8566782), (18, 7138985), (21, 6119130), (30, 4283391), (35, 3671478), (42, 3059565), (45, 2855594), (63, 2039710), (70, 1835739), (90, 1427797), (105, 1223826), (126, 1019855), (210, 611913), (315, 407942), (630, 203971)]