16872440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{457}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 41549760

約数和(自身を除く): 24677320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 130, 142, 260, 284, 355, 457, 520, 568, 710, 914, 923, 1420, 1828, 1846, 2285, 2840, 3656, 3692, 4570, 4615, 5941, 7384, 9140, 9230, 11882, 18280, 18460, 23764, 29705, 32447, 36920, 47528, 59410, 64894, 118820, 129788, 162235, 237640, 259576, 324470, 421811, 648940, 843622, 1297880, 1687244, 2109055, 3374488, 4218110, 8436220, 16872440]

約数ペア:

[(1, 16872440), (2, 8436220), (4, 4218110), (5, 3374488), (8, 2109055), (10, 1687244), (13, 1297880), (20, 843622), (26, 648940), (40, 421811), (52, 324470), (65, 259576), (71, 237640), (104, 162235), (130, 129788), (142, 118820), (260, 64894), (284, 59410), (355, 47528), (457, 36920), (520, 32447), (568, 29705), (710, 23764), (914, 18460), (923, 18280), (1420, 11882), (1828, 9230), (1846, 9140), (2285, 7384), (2840, 5941), (3656, 4615), (3692, 4570)]