25222040

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 58786560

約数和(自身を除く): 33564520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 83, 107, 142, 166, 214, 284, 332, 355, 415, 428, 535, 568, 664, 710, 830, 856, 1070, 1420, 1660, 2140, 2840, 3320, 4280, 5893, 7597, 8881, 11786, 15194, 17762, 23572, 29465, 30388, 35524, 37985, 44405, 47144, 58930, 60776, 71048, 75970, 88810, 117860, 151940, 177620, 235720, 303880, 355240, 630551, 1261102, 2522204, 3152755, 5044408, 6305510, 12611020, 25222040]

約数ペア:

[(1, 25222040), (2, 12611020), (4, 6305510), (5, 5044408), (8, 3152755), (10, 2522204), (20, 1261102), (40, 630551), (71, 355240), (83, 303880), (107, 235720), (142, 177620), (166, 151940), (214, 117860), (284, 88810), (332, 75970), (355, 71048), (415, 60776), (428, 58930), (535, 47144), (568, 44405), (664, 37985), (710, 35524), (830, 30388), (856, 29465), (1070, 23572), (1420, 17762), (1660, 15194), (2140, 11786), (2840, 8881), (3320, 7597), (4280, 5893)]