8131040

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{571}}^1$

素因数の和:675

約数の個数: 48

約数和(自身を含む): 19459440

約数和(自身を除く): 11328400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 571, 712, 890, 1142, 1424, 1780, 2284, 2848, 2855, 3560, 4568, 5710, 7120, 9136, 11420, 14240, 18272, 22840, 45680, 50819, 91360, 101638, 203276, 254095, 406552, 508190, 813104, 1016380, 1626208, 2032760, 4065520, 8131040]

約数ペア:

[(1, 8131040), (2, 4065520), (4, 2032760), (5, 1626208), (8, 1016380), (10, 813104), (16, 508190), (20, 406552), (32, 254095), (40, 203276), (80, 101638), (89, 91360), (160, 50819), (178, 45680), (356, 22840), (445, 18272), (571, 14240), (712, 11420), (890, 9136), (1142, 7120), (1424, 5710), (1780, 4568), (2284, 3560), (2848, 2855)]