538608920

素因数分解:

$2^3\times 5^1\times {\mathrm{1619}}^1\times {\mathrm{8317}}^1$

素因数の和:9947

約数の個数: 32

約数和(自身を含む): 1212764400

約数和(自身を除く): 674155480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1619, 3238, 6476, 8095, 8317, 12952, 16190, 16634, 32380, 33268, 41585, 64760, 66536, 83170, 166340, 332680, 13465223, 26930446, 53860892, 67326115, 107721784, 134652230, 269304460, 538608920]

約数ペア:

[(1, 538608920), (2, 269304460), (4, 134652230), (5, 107721784), (8, 67326115), (10, 53860892), (20, 26930446), (40, 13465223), (1619, 332680), (3238, 166340), (6476, 83170), (8095, 66536), (8317, 64760), (12952, 41585), (16190, 33268), (16634, 32380)]