81255650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{7489}}^1$

素因数の和:7539

約数の個数: 48

約数和(自身を含む): 178321920

約数和(自身を除く): 97066270

約数列:

[1, 2, 5, 7, 10, 14, 25, 31, 35, 50, 62, 70, 155, 175, 217, 310, 350, 434, 775, 1085, 1550, 2170, 5425, 7489, 10850, 14978, 37445, 52423, 74890, 104846, 187225, 232159, 262115, 374450, 464318, 524230, 1160795, 1310575, 1625113, 2321590, 2621150, 3250226, 5803975, 8125565, 11607950, 16251130, 40627825, 81255650]

約数ペア:

[(1, 81255650), (2, 40627825), (5, 16251130), (7, 11607950), (10, 8125565), (14, 5803975), (25, 3250226), (31, 2621150), (35, 2321590), (50, 1625113), (62, 1310575), (70, 1160795), (155, 524230), (175, 464318), (217, 374450), (310, 262115), (350, 232159), (434, 187225), (775, 104846), (1085, 74890), (1550, 52423), (2170, 37445), (5425, 14978), (7489, 10850)]