81327680

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{36307}}^1$

素因数の和:36331

約数の個数: 56

約数和(自身を含む): 221333568

約数和(自身を除く): 140005888

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 36307, 72614, 145228, 181535, 254149, 290456, 363070, 508298, 580912, 726140, 1016596, 1161824, 1270745, 1452280, 2033192, 2323648, 2541490, 2904560, 4066384, 5082980, 5809120, 8132768, 10165960, 11618240, 16265536, 20331920, 40663840, 81327680]

約数ペア:

[(1, 81327680), (2, 40663840), (4, 20331920), (5, 16265536), (7, 11618240), (8, 10165960), (10, 8132768), (14, 5809120), (16, 5082980), (20, 4066384), (28, 2904560), (32, 2541490), (35, 2323648), (40, 2033192), (56, 1452280), (64, 1270745), (70, 1161824), (80, 1016596), (112, 726140), (140, 580912), (160, 508298), (224, 363070), (280, 290456), (320, 254149), (448, 181535), (560, 145228), (1120, 72614), (2240, 36307)]