20349990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1307}}^1$

素因数の和:1493

約数の個数: 48

約数和(自身を含む): 53256528

約数和(自身を除く): 32906538

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 173, 346, 519, 865, 1038, 1307, 1557, 1730, 2595, 2614, 3114, 3921, 5190, 6535, 7785, 7842, 11763, 13070, 15570, 19605, 23526, 39210, 58815, 117630, 226111, 452222, 678333, 1130555, 1356666, 2034999, 2261110, 3391665, 4069998, 6783330, 10174995, 20349990]

約数ペア:

[(1, 20349990), (2, 10174995), (3, 6783330), (5, 4069998), (6, 3391665), (9, 2261110), (10, 2034999), (15, 1356666), (18, 1130555), (30, 678333), (45, 452222), (90, 226111), (173, 117630), (346, 58815), (519, 39210), (865, 23526), (1038, 19605), (1307, 15570), (1557, 13070), (1730, 11763), (2595, 7842), (2614, 7785), (3114, 6535), (3921, 5190)]