1212677420

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1\times {\mathrm{2819}}^1$

素因数の和:3122

約数の個数: 48

約数和(自身を含む): 2582465760

約数和(自身を除く): 1369788340

約数列:

[1, 2, 4, 5, 10, 20, 137, 157, 274, 314, 548, 628, 685, 785, 1370, 1570, 2740, 2819, 3140, 5638, 11276, 14095, 21509, 28190, 43018, 56380, 86036, 107545, 215090, 386203, 430180, 442583, 772406, 885166, 1544812, 1770332, 1931015, 2212915, 3862030, 4425830, 7724060, 8851660, 60633871, 121267742, 242535484, 303169355, 606338710, 1212677420]

約数ペア:

[(1, 1212677420), (2, 606338710), (4, 303169355), (5, 242535484), (10, 121267742), (20, 60633871), (137, 8851660), (157, 7724060), (274, 4425830), (314, 3862030), (548, 2212915), (628, 1931015), (685, 1770332), (785, 1544812), (1370, 885166), (1570, 772406), (2740, 442583), (2819, 430180), (3140, 386203), (5638, 215090), (11276, 107545), (14095, 86036), (21509, 56380), (28190, 43018)]