64284700

素因数分解:

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

素因数の和:367

約数の個数: 72

約数和(自身を含む): 146240640

約数和(自身を除く): 81955940

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 89, 100, 124, 155, 178, 233, 310, 356, 445, 466, 620, 775, 890, 932, 1165, 1550, 1780, 2225, 2330, 2759, 3100, 4450, 4660, 5518, 5825, 7223, 8900, 11036, 11650, 13795, 14446, 20737, 23300, 27590, 28892, 36115, 41474, 55180, 68975, 72230, 82948, 103685, 137950, 144460, 180575, 207370, 275900, 361150, 414740, 518425, 642847, 722300, 1036850, 1285694, 2073700, 2571388, 3214235, 6428470, 12856940, 16071175, 32142350, 64284700]

約数ペア:

[(1, 64284700), (2, 32142350), (4, 16071175), (5, 12856940), (10, 6428470), (20, 3214235), (25, 2571388), (31, 2073700), (50, 1285694), (62, 1036850), (89, 722300), (100, 642847), (124, 518425), (155, 414740), (178, 361150), (233, 275900), (310, 207370), (356, 180575), (445, 144460), (466, 137950), (620, 103685), (775, 82948), (890, 72230), (932, 68975), (1165, 55180), (1550, 41474), (1780, 36115), (2225, 28892), (2330, 27590), (2759, 23300), (3100, 20737), (4450, 14446), (4660, 13795), (5518, 11650), (5825, 11036), (7223, 8900)]