19940640

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{41543}}^1$

素因数の和:41561

約数の個数: 48

約数和(自身を含む): 62814528

約数和(自身を除く): 42873888

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 41543, 83086, 124629, 166172, 207715, 249258, 332344, 415430, 498516, 623145, 664688, 830860, 997032, 1246290, 1329376, 1661720, 1994064, 2492580, 3323440, 3988128, 4985160, 6646880, 9970320, 19940640]

約数ペア:

[(1, 19940640), (2, 9970320), (3, 6646880), (4, 4985160), (5, 3988128), (6, 3323440), (8, 2492580), (10, 1994064), (12, 1661720), (15, 1329376), (16, 1246290), (20, 997032), (24, 830860), (30, 664688), (32, 623145), (40, 498516), (48, 415430), (60, 332344), (80, 249258), (96, 207715), (120, 166172), (160, 124629), (240, 83086), (480, 41543)]