202123220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{179}}^1$

素因数の和:345

約数の個数: 96

約数和(自身を含む): 475009920

約数和(自身を除く): 272886700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 101, 130, 172, 179, 202, 215, 260, 358, 404, 430, 505, 559, 716, 860, 895, 1010, 1118, 1313, 1790, 2020, 2236, 2327, 2626, 2795, 3580, 4343, 4654, 5252, 5590, 6565, 7697, 8686, 9308, 11180, 11635, 13130, 15394, 17372, 18079, 21715, 23270, 26260, 30788, 36158, 38485, 43430, 46540, 56459, 72316, 76970, 86860, 90395, 100061, 112918, 153940, 180790, 200122, 225836, 235027, 282295, 361580, 400244, 470054, 500305, 564590, 777397, 940108, 1000610, 1129180, 1175135, 1554794, 2001220, 2350270, 3109588, 3886985, 4700540, 7773970, 10106161, 15547940, 20212322, 40424644, 50530805, 101061610, 202123220]

約数ペア:

[(1, 202123220), (2, 101061610), (4, 50530805), (5, 40424644), (10, 20212322), (13, 15547940), (20, 10106161), (26, 7773970), (43, 4700540), (52, 3886985), (65, 3109588), (86, 2350270), (101, 2001220), (130, 1554794), (172, 1175135), (179, 1129180), (202, 1000610), (215, 940108), (260, 777397), (358, 564590), (404, 500305), (430, 470054), (505, 400244), (559, 361580), (716, 282295), (860, 235027), (895, 225836), (1010, 200122), (1118, 180790), (1313, 153940), (1790, 112918), (2020, 100061), (2236, 90395), (2327, 86860), (2626, 76970), (2795, 72316), (3580, 56459), (4343, 46540), (4654, 43430), (5252, 38485), (5590, 36158), (6565, 30788), (7697, 26260), (8686, 23270), (9308, 21715), (11180, 18079), (11635, 17372), (13130, 15394)]