20983670150

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{37649}}^1$

素因数の和:37889

約数の個数: 48

約数和(自身を含む): 39832495200

約数和(自身を除く): 18848825050

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 157, 314, 355, 710, 785, 1570, 1775, 3550, 3925, 7850, 11147, 22294, 37649, 55735, 75298, 111470, 188245, 278675, 376490, 557350, 941225, 1882450, 2673079, 5346158, 5910893, 11821786, 13365395, 26730790, 29554465, 59108930, 66826975, 133653950, 147772325, 295544650, 419673403, 839346806, 2098367015, 4196734030, 10491835075, 20983670150]

約数ペア:

[(1, 20983670150), (2, 10491835075), (5, 4196734030), (10, 2098367015), (25, 839346806), (50, 419673403), (71, 295544650), (142, 147772325), (157, 133653950), (314, 66826975), (355, 59108930), (710, 29554465), (785, 26730790), (1570, 13365395), (1775, 11821786), (3550, 5910893), (3925, 5346158), (7850, 2673079), (11147, 1882450), (22294, 941225), (37649, 557350), (55735, 376490), (75298, 278675), (111470, 188245)]