81950540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{4919}}^1$

素因数の和:4959

約数の個数: 72

約数和(自身を含む): 212012640

約数和(自身を除く): 130062100

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 476, 490, 595, 833, 980, 1190, 1666, 2380, 3332, 4165, 4919, 8330, 9838, 16660, 19676, 24595, 34433, 49190, 68866, 83623, 98380, 137732, 167246, 172165, 241031, 334492, 344330, 418115, 482062, 585361, 688660, 836230, 964124, 1170722, 1205155, 1672460, 2341444, 2410310, 2926805, 4097527, 4820620, 5853610, 8195054, 11707220, 16390108, 20487635, 40975270, 81950540]

約数ペア:

[(1, 81950540), (2, 40975270), (4, 20487635), (5, 16390108), (7, 11707220), (10, 8195054), (14, 5853610), (17, 4820620), (20, 4097527), (28, 2926805), (34, 2410310), (35, 2341444), (49, 1672460), (68, 1205155), (70, 1170722), (85, 964124), (98, 836230), (119, 688660), (140, 585361), (170, 482062), (196, 418115), (238, 344330), (245, 334492), (340, 241031), (476, 172165), (490, 167246), (595, 137732), (833, 98380), (980, 83623), (1190, 68866), (1666, 49190), (2380, 34433), (3332, 24595), (4165, 19676), (4919, 16660), (8330, 9838)]