20693680

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{5279}}^1$

素因数の和:5306

約数の個数: 60

約数和(自身を含む): 55978560

約数和(自身を除く): 35284880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 5279, 10558, 21116, 26395, 36953, 42232, 52790, 73906, 84464, 105580, 147812, 184765, 211160, 258671, 295624, 369530, 422320, 517342, 591248, 739060, 1034684, 1293355, 1478120, 2069368, 2586710, 2956240, 4138736, 5173420, 10346840, 20693680]

約数ペア:

[(1, 20693680), (2, 10346840), (4, 5173420), (5, 4138736), (7, 2956240), (8, 2586710), (10, 2069368), (14, 1478120), (16, 1293355), (20, 1034684), (28, 739060), (35, 591248), (40, 517342), (49, 422320), (56, 369530), (70, 295624), (80, 258671), (98, 211160), (112, 184765), (140, 147812), (196, 105580), (245, 84464), (280, 73906), (392, 52790), (490, 42232), (560, 36953), (784, 26395), (980, 21116), (1960, 10558), (3920, 5279)]