87768440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1913}}^1$

素因数の和:1992

約数の個数: 64

約数和(自身を含む): 209468160

約数和(自身を除く): 121699720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 296, 310, 370, 620, 740, 1147, 1240, 1480, 1913, 2294, 3826, 4588, 5735, 7652, 9176, 9565, 11470, 15304, 19130, 22940, 38260, 45880, 59303, 70781, 76520, 118606, 141562, 237212, 283124, 296515, 353905, 474424, 566248, 593030, 707810, 1186060, 1415620, 2194211, 2372120, 2831240, 4388422, 8776844, 10971055, 17553688, 21942110, 43884220, 87768440]

約数ペア:

[(1, 87768440), (2, 43884220), (4, 21942110), (5, 17553688), (8, 10971055), (10, 8776844), (20, 4388422), (31, 2831240), (37, 2372120), (40, 2194211), (62, 1415620), (74, 1186060), (124, 707810), (148, 593030), (155, 566248), (185, 474424), (248, 353905), (296, 296515), (310, 283124), (370, 237212), (620, 141562), (740, 118606), (1147, 76520), (1240, 70781), (1480, 59303), (1913, 45880), (2294, 38260), (3826, 22940), (4588, 19130), (5735, 15304), (7652, 11470), (9176, 9565)]