81321840

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{37649}}^1$

素因数の和:37671

約数の個数: 80

約数和(自身を含む): 280116000

約数和(自身を除く): 198794160

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, 37649, 75298, 112947, 150596, 188245, 225894, 301192, 338841, 376490, 451788, 564735, 602384, 677682, 752980, 903576, 1016523, 1129470, 1355364, 1505960, 1694205, 1807152, 2033046, 2258940, 2710728, 3011920, 3388410, 4066092, 4517880, 5082615, 5421456, 6776820, 8132184, 9035760, 10165230, 13553640, 16264368, 20330460, 27107280, 40660920, 81321840]

約数ペア:

[(1, 81321840), (2, 40660920), (3, 27107280), (4, 20330460), (5, 16264368), (6, 13553640), (8, 10165230), (9, 9035760), (10, 8132184), (12, 6776820), (15, 5421456), (16, 5082615), (18, 4517880), (20, 4066092), (24, 3388410), (27, 3011920), (30, 2710728), (36, 2258940), (40, 2033046), (45, 1807152), (48, 1694205), (54, 1505960), (60, 1355364), (72, 1129470), (80, 1016523), (90, 903576), (108, 752980), (120, 677682), (135, 602384), (144, 564735), (180, 451788), (216, 376490), (240, 338841), (270, 301192), (360, 225894), (432, 188245), (540, 150596), (720, 112947), (1080, 75298), (2160, 37649)]