25713880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1$

素因数の和:364

約数の個数: 64

約数和(自身を含む): 60652800

約数和(自身を除く): 34938920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 89, 124, 155, 178, 233, 248, 310, 356, 445, 466, 620, 712, 890, 932, 1165, 1240, 1780, 1864, 2330, 2759, 3560, 4660, 5518, 7223, 9320, 11036, 13795, 14446, 20737, 22072, 27590, 28892, 36115, 41474, 55180, 57784, 72230, 82948, 103685, 110360, 144460, 165896, 207370, 288920, 414740, 642847, 829480, 1285694, 2571388, 3214235, 5142776, 6428470, 12856940, 25713880]

約数ペア:

[(1, 25713880), (2, 12856940), (4, 6428470), (5, 5142776), (8, 3214235), (10, 2571388), (20, 1285694), (31, 829480), (40, 642847), (62, 414740), (89, 288920), (124, 207370), (155, 165896), (178, 144460), (233, 110360), (248, 103685), (310, 82948), (356, 72230), (445, 57784), (466, 55180), (620, 41474), (712, 36115), (890, 28892), (932, 27590), (1165, 22072), (1240, 20737), (1780, 14446), (1864, 13795), (2330, 11036), (2759, 9320), (3560, 7223), (4660, 5518)]