20199665185

素因数分解:

$5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{307}}^1\times {\mathrm{2659}}^1$

素因数の和:3086

約数の個数: 48

約数和(自身を含む): 28579763520

約数和(自身を除く): 8380098335

約数列:

[1, 5, 7, 35, 49, 101, 245, 307, 505, 707, 1535, 2149, 2659, 3535, 4949, 10745, 13295, 15043, 18613, 24745, 31007, 75215, 93065, 130291, 155035, 217049, 268559, 651455, 816313, 1085245, 1342795, 1519343, 1879913, 4081565, 5714191, 7596715, 9399565, 13159391, 28570955, 39999337, 65796955, 82447613, 199996685, 412238065, 577133291, 2885666455, 4039933037, 20199665185]

約数ペア:

[(1, 20199665185), (5, 4039933037), (7, 2885666455), (35, 577133291), (49, 412238065), (101, 199996685), (245, 82447613), (307, 65796955), (505, 39999337), (707, 28570955), (1535, 13159391), (2149, 9399565), (2659, 7596715), (3535, 5714191), (4949, 4081565), (10745, 1879913), (13295, 1519343), (15043, 1342795), (18613, 1085245), (24745, 816313), (31007, 651455), (75215, 268559), (93065, 217049), (130291, 155035)]