217825100

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{283}}^1$

素因数の和:519

約数の個数: 72

約数和(自身を含む): 488093760

約数和(自身を除く): 270268660

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 179, 215, 283, 358, 430, 566, 716, 860, 895, 1075, 1132, 1415, 1790, 2150, 2830, 3580, 4300, 4475, 5660, 7075, 7697, 8950, 12169, 14150, 15394, 17900, 24338, 28300, 30788, 38485, 48676, 50657, 60845, 76970, 101314, 121690, 153940, 192425, 202628, 243380, 253285, 304225, 384850, 506570, 608450, 769700, 1013140, 1216900, 1266425, 2178251, 2532850, 4356502, 5065700, 8713004, 10891255, 21782510, 43565020, 54456275, 108912550, 217825100]

約数ペア:

[(1, 217825100), (2, 108912550), (4, 54456275), (5, 43565020), (10, 21782510), (20, 10891255), (25, 8713004), (43, 5065700), (50, 4356502), (86, 2532850), (100, 2178251), (172, 1266425), (179, 1216900), (215, 1013140), (283, 769700), (358, 608450), (430, 506570), (566, 384850), (716, 304225), (860, 253285), (895, 243380), (1075, 202628), (1132, 192425), (1415, 153940), (1790, 121690), (2150, 101314), (2830, 76970), (3580, 60845), (4300, 50657), (4475, 48676), (5660, 38485), (7075, 30788), (7697, 28300), (8950, 24338), (12169, 17900), (14150, 15394)]