20386590

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{503}}^1$

素因数の和:713

約数の個数: 64

約数和(自身を含む): 56318976

約数和(自身を除く): 35932386

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 193, 210, 386, 503, 579, 965, 1006, 1158, 1351, 1509, 1930, 2515, 2702, 2895, 3018, 3521, 4053, 5030, 5790, 6755, 7042, 7545, 8106, 10563, 13510, 15090, 17605, 20265, 21126, 35210, 40530, 52815, 97079, 105630, 194158, 291237, 485395, 582474, 679553, 970790, 1359106, 1456185, 2038659, 2912370, 3397765, 4077318, 6795530, 10193295, 20386590]

約数ペア:

[(1, 20386590), (2, 10193295), (3, 6795530), (5, 4077318), (6, 3397765), (7, 2912370), (10, 2038659), (14, 1456185), (15, 1359106), (21, 970790), (30, 679553), (35, 582474), (42, 485395), (70, 291237), (105, 194158), (193, 105630), (210, 97079), (386, 52815), (503, 40530), (579, 35210), (965, 21126), (1006, 20265), (1158, 17605), (1351, 15090), (1509, 13510), (1930, 10563), (2515, 8106), (2702, 7545), (2895, 7042), (3018, 6755), (3521, 5790), (4053, 5030)]