77871990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{6079}}^1$

素因数の和:6157

約数の個数: 64

約数和(自身を含む): 217128960

約数和(自身を除く): 139256970

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 61, 70, 105, 122, 183, 210, 305, 366, 427, 610, 854, 915, 1281, 1830, 2135, 2562, 4270, 6079, 6405, 12158, 12810, 18237, 30395, 36474, 42553, 60790, 85106, 91185, 127659, 182370, 212765, 255318, 370819, 425530, 638295, 741638, 1112457, 1276590, 1854095, 2224914, 2595733, 3708190, 5191466, 5562285, 7787199, 11124570, 12978665, 15574398, 25957330, 38935995, 77871990]

約数ペア:

[(1, 77871990), (2, 38935995), (3, 25957330), (5, 15574398), (6, 12978665), (7, 11124570), (10, 7787199), (14, 5562285), (15, 5191466), (21, 3708190), (30, 2595733), (35, 2224914), (42, 1854095), (61, 1276590), (70, 1112457), (105, 741638), (122, 638295), (183, 425530), (210, 370819), (305, 255318), (366, 212765), (427, 182370), (610, 127659), (854, 91185), (915, 85106), (1281, 60790), (1830, 42553), (2135, 36474), (2562, 30395), (4270, 18237), (6079, 12810), (6405, 12158)]