21450960

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9931}}^1$

素因数の和:9953

約数の個数: 80

約数和(自身を含む): 73894080

約数和(自身を除く): 52443120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 9931, 19862, 29793, 39724, 49655, 59586, 79448, 89379, 99310, 119172, 148965, 158896, 178758, 198620, 238344, 268137, 297930, 357516, 397240, 446895, 476688, 536274, 595860, 715032, 794480, 893790, 1072548, 1191720, 1340685, 1430064, 1787580, 2145096, 2383440, 2681370, 3575160, 4290192, 5362740, 7150320, 10725480, 21450960]

約数ペア:

[(1, 21450960), (2, 10725480), (3, 7150320), (4, 5362740), (5, 4290192), (6, 3575160), (8, 2681370), (9, 2383440), (10, 2145096), (12, 1787580), (15, 1430064), (16, 1340685), (18, 1191720), (20, 1072548), (24, 893790), (27, 794480), (30, 715032), (36, 595860), (40, 536274), (45, 476688), (48, 446895), (54, 397240), (60, 357516), (72, 297930), (80, 268137), (90, 238344), (108, 198620), (120, 178758), (135, 158896), (144, 148965), (180, 119172), (216, 99310), (240, 89379), (270, 79448), (360, 59586), (432, 49655), (540, 39724), (720, 29793), (1080, 19862), (2160, 9931)]