220149237

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{557}}^1$

素因数の和:666

約数の個数: 64

約数和(自身を含む): 385689600

約数和(自身を除く): 165540363

約数列:

[1, 3, 7, 11, 21, 29, 33, 59, 77, 87, 177, 203, 231, 319, 413, 557, 609, 649, 957, 1239, 1671, 1711, 1947, 2233, 3899, 4543, 5133, 6127, 6699, 11697, 11977, 13629, 16153, 18381, 18821, 32863, 35931, 42889, 48459, 56463, 98589, 113071, 128667, 131747, 177683, 230041, 339213, 361493, 395241, 533049, 690123, 953027, 1084479, 1243781, 2530451, 2859081, 3731343, 6671189, 7591353, 10483297, 20013567, 31449891, 73383079, 220149237]

約数ペア:

[(1, 220149237), (3, 73383079), (7, 31449891), (11, 20013567), (21, 10483297), (29, 7591353), (33, 6671189), (59, 3731343), (77, 2859081), (87, 2530451), (177, 1243781), (203, 1084479), (231, 953027), (319, 690123), (413, 533049), (557, 395241), (609, 361493), (649, 339213), (957, 230041), (1239, 177683), (1671, 131747), (1711, 128667), (1947, 113071), (2233, 98589), (3899, 56463), (4543, 48459), (5133, 42889), (6127, 35931), (6699, 32863), (11697, 18821), (11977, 18381), (13629, 16153)]