81996440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{3259}}^1$

素因数の和:3324

約数の個数: 64

約数和(自身を含む): 200685600

約数和(自身を除く): 118689160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 37, 40, 68, 74, 85, 136, 148, 170, 185, 296, 340, 370, 629, 680, 740, 1258, 1480, 2516, 3145, 3259, 5032, 6290, 6518, 12580, 13036, 16295, 25160, 26072, 32590, 55403, 65180, 110806, 120583, 130360, 221612, 241166, 277015, 443224, 482332, 554030, 602915, 964664, 1108060, 1205830, 2049911, 2216120, 2411660, 4099822, 4823320, 8199644, 10249555, 16399288, 20499110, 40998220, 81996440]

約数ペア:

[(1, 81996440), (2, 40998220), (4, 20499110), (5, 16399288), (8, 10249555), (10, 8199644), (17, 4823320), (20, 4099822), (34, 2411660), (37, 2216120), (40, 2049911), (68, 1205830), (74, 1108060), (85, 964664), (136, 602915), (148, 554030), (170, 482332), (185, 443224), (296, 277015), (340, 241166), (370, 221612), (629, 130360), (680, 120583), (740, 110806), (1258, 65180), (1480, 55403), (2516, 32590), (3145, 26072), (3259, 25160), (5032, 16295), (6290, 13036), (6518, 12580)]