81190780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{3583}}^1$

素因数の和:3706

約数の個数: 48

約数和(自身を含む): 187858944

約数和(自身を除く): 106668164

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 206, 220, 412, 515, 1030, 1133, 2060, 2266, 3583, 4532, 5665, 7166, 11330, 14332, 17915, 22660, 35830, 39413, 71660, 78826, 157652, 197065, 369049, 394130, 738098, 788260, 1476196, 1845245, 3690490, 4059539, 7380980, 8119078, 16238156, 20297695, 40595390, 81190780]

約数ペア:

[(1, 81190780), (2, 40595390), (4, 20297695), (5, 16238156), (10, 8119078), (11, 7380980), (20, 4059539), (22, 3690490), (44, 1845245), (55, 1476196), (103, 788260), (110, 738098), (206, 394130), (220, 369049), (412, 197065), (515, 157652), (1030, 78826), (1133, 71660), (2060, 39413), (2266, 35830), (3583, 22660), (4532, 17915), (5665, 14332), (7166, 11330)]