21428280

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19841}}^1$

素因数の和:19861

約数の個数: 64

約数和(自身を含む): 71431200

約数和(自身を除く): 50002920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 19841, 39682, 59523, 79364, 99205, 119046, 158728, 178569, 198410, 238092, 297615, 357138, 396820, 476184, 535707, 595230, 714276, 793640, 892845, 1071414, 1190460, 1428552, 1785690, 2142828, 2380920, 2678535, 3571380, 4285656, 5357070, 7142760, 10714140, 21428280]

約数ペア:

[(1, 21428280), (2, 10714140), (3, 7142760), (4, 5357070), (5, 4285656), (6, 3571380), (8, 2678535), (9, 2380920), (10, 2142828), (12, 1785690), (15, 1428552), (18, 1190460), (20, 1071414), (24, 892845), (27, 793640), (30, 714276), (36, 595230), (40, 535707), (45, 476184), (54, 396820), (60, 357138), (72, 297615), (90, 238092), (108, 198410), (120, 178569), (135, 158728), (180, 119046), (216, 99205), (270, 79364), (360, 59523), (540, 39682), (1080, 19841)]