66491900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:375

約数の個数: 72

約数和(自身を含む): 151240320

約数和(自身を除く): 84748420

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 89, 100, 124, 155, 178, 241, 310, 356, 445, 482, 620, 775, 890, 964, 1205, 1550, 1780, 2225, 2410, 2759, 3100, 4450, 4820, 5518, 6025, 7471, 8900, 11036, 12050, 13795, 14942, 21449, 24100, 27590, 29884, 37355, 42898, 55180, 68975, 74710, 85796, 107245, 137950, 149420, 186775, 214490, 275900, 373550, 428980, 536225, 664919, 747100, 1072450, 1329838, 2144900, 2659676, 3324595, 6649190, 13298380, 16622975, 33245950, 66491900]

約数ペア:

[(1, 66491900), (2, 33245950), (4, 16622975), (5, 13298380), (10, 6649190), (20, 3324595), (25, 2659676), (31, 2144900), (50, 1329838), (62, 1072450), (89, 747100), (100, 664919), (124, 536225), (155, 428980), (178, 373550), (241, 275900), (310, 214490), (356, 186775), (445, 149420), (482, 137950), (620, 107245), (775, 85796), (890, 74710), (964, 68975), (1205, 55180), (1550, 42898), (1780, 37355), (2225, 29884), (2410, 27590), (2759, 24100), (3100, 21449), (4450, 14942), (4820, 13795), (5518, 12050), (6025, 11036), (7471, 8900)]