81257130

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1$

素因数の和:396

約数の個数: 96

約数和(自身を含む): 221045760

約数和(自身を除く): 139788630

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 87, 90, 145, 163, 174, 191, 261, 290, 326, 382, 435, 489, 522, 573, 815, 870, 955, 978, 1146, 1305, 1467, 1630, 1719, 1910, 2445, 2610, 2865, 2934, 3438, 4727, 4890, 5539, 5730, 7335, 8595, 9454, 11078, 14181, 14670, 16617, 17190, 23635, 27695, 28362, 31133, 33234, 42543, 47270, 49851, 55390, 62266, 70905, 83085, 85086, 93399, 99702, 141810, 155665, 166170, 186798, 212715, 249255, 280197, 311330, 425430, 466995, 498510, 560394, 902857, 933990, 1400985, 1805714, 2708571, 2801970, 4514285, 5417142, 8125713, 9028570, 13542855, 16251426, 27085710, 40628565, 81257130]

約数ペア:

[(1, 81257130), (2, 40628565), (3, 27085710), (5, 16251426), (6, 13542855), (9, 9028570), (10, 8125713), (15, 5417142), (18, 4514285), (29, 2801970), (30, 2708571), (45, 1805714), (58, 1400985), (87, 933990), (90, 902857), (145, 560394), (163, 498510), (174, 466995), (191, 425430), (261, 311330), (290, 280197), (326, 249255), (382, 212715), (435, 186798), (489, 166170), (522, 155665), (573, 141810), (815, 99702), (870, 93399), (955, 85086), (978, 83085), (1146, 70905), (1305, 62266), (1467, 55390), (1630, 49851), (1719, 47270), (1910, 42543), (2445, 33234), (2610, 31133), (2865, 28362), (2934, 27695), (3438, 23635), (4727, 17190), (4890, 16617), (5539, 14670), (5730, 14181), (7335, 11078), (8595, 9454)]