21268440

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{419}}^1$

素因数の和:486

約数の個数: 128

約数和(自身を含む): 72576000

約数和(自身を除く): 51307560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 47, 54, 60, 72, 90, 94, 108, 120, 135, 141, 180, 188, 216, 235, 270, 282, 360, 376, 419, 423, 470, 540, 564, 705, 838, 846, 940, 1080, 1128, 1257, 1269, 1410, 1676, 1692, 1880, 2095, 2115, 2514, 2538, 2820, 3352, 3384, 3771, 4190, 4230, 5028, 5076, 5640, 6285, 6345, 7542, 8380, 8460, 10056, 10152, 11313, 12570, 12690, 15084, 16760, 16920, 18855, 19693, 22626, 25140, 25380, 30168, 37710, 39386, 45252, 50280, 50760, 56565, 59079, 75420, 78772, 90504, 98465, 113130, 118158, 150840, 157544, 177237, 196930, 226260, 236316, 295395, 354474, 393860, 452520, 472632, 531711, 590790, 708948, 787720, 886185, 1063422, 1181580, 1417896, 1772370, 2126844, 2363160, 2658555, 3544740, 4253688, 5317110, 7089480, 10634220, 21268440]

約数ペア:

[(1, 21268440), (2, 10634220), (3, 7089480), (4, 5317110), (5, 4253688), (6, 3544740), (8, 2658555), (9, 2363160), (10, 2126844), (12, 1772370), (15, 1417896), (18, 1181580), (20, 1063422), (24, 886185), (27, 787720), (30, 708948), (36, 590790), (40, 531711), (45, 472632), (47, 452520), (54, 393860), (60, 354474), (72, 295395), (90, 236316), (94, 226260), (108, 196930), (120, 177237), (135, 157544), (141, 150840), (180, 118158), (188, 113130), (216, 98465), (235, 90504), (270, 78772), (282, 75420), (360, 59079), (376, 56565), (419, 50760), (423, 50280), (470, 45252), (540, 39386), (564, 37710), (705, 30168), (838, 25380), (846, 25140), (940, 22626), (1080, 19693), (1128, 18855), (1257, 16920), (1269, 16760), (1410, 15084), (1676, 12690), (1692, 12570), (1880, 11313), (2095, 10152), (2115, 10056), (2514, 8460), (2538, 8380), (2820, 7542), (3352, 6345), (3384, 6285), (3771, 5640), (4190, 5076), (4230, 5028)]