20061650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^2$

素因数の和:136

約数の個数: 72

約数和(自身を含む): 45068544

約数和(自身を除く): 25006894

約数列:

[1, 2, 5, 7, 10, 14, 25, 31, 35, 43, 50, 62, 70, 86, 155, 175, 215, 217, 301, 310, 350, 430, 434, 602, 775, 1075, 1085, 1333, 1505, 1550, 1849, 2150, 2170, 2666, 3010, 3698, 5425, 6665, 7525, 9245, 9331, 10850, 12943, 13330, 15050, 18490, 18662, 25886, 33325, 46225, 46655, 57319, 64715, 66650, 92450, 93310, 114638, 129430, 233275, 286595, 323575, 401233, 466550, 573190, 647150, 802466, 1432975, 2006165, 2865950, 4012330, 10030825, 20061650]

約数ペア:

[(1, 20061650), (2, 10030825), (5, 4012330), (7, 2865950), (10, 2006165), (14, 1432975), (25, 802466), (31, 647150), (35, 573190), (43, 466550), (50, 401233), (62, 323575), (70, 286595), (86, 233275), (155, 129430), (175, 114638), (215, 93310), (217, 92450), (301, 66650), (310, 64715), (350, 57319), (430, 46655), (434, 46225), (602, 33325), (775, 25886), (1075, 18662), (1085, 18490), (1333, 15050), (1505, 13330), (1550, 12943), (1849, 10850), (2150, 9331), (2170, 9245), (2666, 7525), (3010, 6665), (3698, 5425)]