561246980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{269}}^1\times {\mathrm{2129}}^1$

素因数の和:2421

約数の個数: 72

約数和(自身を含む): 1376789400

約数和(自身を除く): 815542420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 269, 490, 538, 980, 1076, 1345, 1883, 2129, 2690, 3766, 4258, 5380, 7532, 8516, 9415, 10645, 13181, 14903, 18830, 21290, 26362, 29806, 37660, 42580, 52724, 59612, 65905, 74515, 104321, 131810, 149030, 208642, 263620, 298060, 417284, 521605, 572701, 1043210, 1145402, 2086420, 2290804, 2863505, 4008907, 5727010, 8017814, 11454020, 16035628, 20044535, 28062349, 40089070, 56124698, 80178140, 112249396, 140311745, 280623490, 561246980]

約数ペア:

[(1, 561246980), (2, 280623490), (4, 140311745), (5, 112249396), (7, 80178140), (10, 56124698), (14, 40089070), (20, 28062349), (28, 20044535), (35, 16035628), (49, 11454020), (70, 8017814), (98, 5727010), (140, 4008907), (196, 2863505), (245, 2290804), (269, 2086420), (490, 1145402), (538, 1043210), (980, 572701), (1076, 521605), (1345, 417284), (1883, 298060), (2129, 263620), (2690, 208642), (3766, 149030), (4258, 131810), (5380, 104321), (7532, 74515), (8516, 65905), (9415, 59612), (10645, 52724), (13181, 42580), (14903, 37660), (18830, 29806), (21290, 26362)]