39990420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:254

約数の個数: 144

約数和(自身を含む): 128943360

約数和(自身を除く): 88952940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 47, 58, 60, 87, 90, 94, 116, 141, 145, 163, 174, 180, 188, 235, 261, 282, 290, 326, 348, 423, 435, 470, 489, 522, 564, 580, 652, 705, 815, 846, 870, 940, 978, 1044, 1305, 1363, 1410, 1467, 1630, 1692, 1740, 1956, 2115, 2445, 2610, 2726, 2820, 2934, 3260, 4089, 4230, 4727, 4890, 5220, 5452, 5868, 6815, 7335, 7661, 8178, 8460, 9454, 9780, 12267, 13630, 14181, 14670, 15322, 16356, 18908, 20445, 22983, 23635, 24534, 27260, 28362, 29340, 30644, 38305, 40890, 42543, 45966, 47270, 49068, 56724, 61335, 68949, 70905, 76610, 81780, 85086, 91932, 94540, 114915, 122670, 137898, 141810, 153220, 170172, 212715, 222169, 229830, 245340, 275796, 283620, 344745, 425430, 444338, 459660, 666507, 689490, 850860, 888676, 1110845, 1333014, 1378980, 1999521, 2221690, 2666028, 3332535, 3999042, 4443380, 6665070, 7998084, 9997605, 13330140, 19995210, 39990420]

約数ペア:

[(1, 39990420), (2, 19995210), (3, 13330140), (4, 9997605), (5, 7998084), (6, 6665070), (9, 4443380), (10, 3999042), (12, 3332535), (15, 2666028), (18, 2221690), (20, 1999521), (29, 1378980), (30, 1333014), (36, 1110845), (45, 888676), (47, 850860), (58, 689490), (60, 666507), (87, 459660), (90, 444338), (94, 425430), (116, 344745), (141, 283620), (145, 275796), (163, 245340), (174, 229830), (180, 222169), (188, 212715), (235, 170172), (261, 153220), (282, 141810), (290, 137898), (326, 122670), (348, 114915), (423, 94540), (435, 91932), (470, 85086), (489, 81780), (522, 76610), (564, 70905), (580, 68949), (652, 61335), (705, 56724), (815, 49068), (846, 47270), (870, 45966), (940, 42543), (978, 40890), (1044, 38305), (1305, 30644), (1363, 29340), (1410, 28362), (1467, 27260), (1630, 24534), (1692, 23635), (1740, 22983), (1956, 20445), (2115, 18908), (2445, 16356), (2610, 15322), (2726, 14670), (2820, 14181), (2934, 13630), (3260, 12267), (4089, 9780), (4230, 9454), (4727, 8460), (4890, 8178), (5220, 7661), (5452, 7335), (5868, 6815)]