18689040

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:377

約数の個数: 120

約数和(自身を含む): 63632088

約数和(自身を除く): 44943048

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 101, 120, 144, 180, 202, 240, 257, 303, 360, 404, 505, 514, 606, 720, 771, 808, 909, 1010, 1028, 1212, 1285, 1515, 1542, 1616, 1818, 2020, 2056, 2313, 2424, 2570, 3030, 3084, 3636, 3855, 4040, 4112, 4545, 4626, 4848, 5140, 6060, 6168, 7272, 7710, 8080, 9090, 9252, 10280, 11565, 12120, 12336, 14544, 15420, 18180, 18504, 20560, 23130, 24240, 25957, 30840, 36360, 37008, 46260, 51914, 61680, 72720, 77871, 92520, 103828, 129785, 155742, 185040, 207656, 233613, 259570, 311484, 389355, 415312, 467226, 519140, 622968, 778710, 934452, 1038280, 1168065, 1245936, 1557420, 1868904, 2076560, 2336130, 3114840, 3737808, 4672260, 6229680, 9344520, 18689040]

約数ペア:

[(1, 18689040), (2, 9344520), (3, 6229680), (4, 4672260), (5, 3737808), (6, 3114840), (8, 2336130), (9, 2076560), (10, 1868904), (12, 1557420), (15, 1245936), (16, 1168065), (18, 1038280), (20, 934452), (24, 778710), (30, 622968), (36, 519140), (40, 467226), (45, 415312), (48, 389355), (60, 311484), (72, 259570), (80, 233613), (90, 207656), (101, 185040), (120, 155742), (144, 129785), (180, 103828), (202, 92520), (240, 77871), (257, 72720), (303, 61680), (360, 51914), (404, 46260), (505, 37008), (514, 36360), (606, 30840), (720, 25957), (771, 24240), (808, 23130), (909, 20560), (1010, 18504), (1028, 18180), (1212, 15420), (1285, 14544), (1515, 12336), (1542, 12120), (1616, 11565), (1818, 10280), (2020, 9252), (2056, 9090), (2313, 8080), (2424, 7710), (2570, 7272), (3030, 6168), (3084, 6060), (3636, 5140), (3855, 4848), (4040, 4626), (4112, 4545)]