19943220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:142

約数の個数: 144

約数和(自身を含む): 63814464

約数和(自身を除く): 43871244

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 41, 44, 55, 60, 66, 67, 82, 110, 121, 123, 132, 134, 164, 165, 201, 205, 220, 242, 246, 268, 330, 335, 363, 402, 410, 451, 484, 492, 605, 615, 660, 670, 726, 737, 804, 820, 902, 1005, 1210, 1230, 1340, 1353, 1452, 1474, 1804, 1815, 2010, 2211, 2255, 2420, 2460, 2706, 2747, 2948, 3630, 3685, 4020, 4422, 4510, 4961, 5412, 5494, 6765, 7260, 7370, 8107, 8241, 8844, 9020, 9922, 10988, 11055, 13530, 13735, 14740, 14883, 16214, 16482, 19844, 22110, 24321, 24805, 27060, 27470, 29766, 30217, 32428, 32964, 40535, 41205, 44220, 48642, 49610, 54940, 59532, 60434, 74415, 81070, 82410, 90651, 97284, 99220, 120868, 121605, 148830, 151085, 162140, 164820, 181302, 243210, 297660, 302170, 332387, 362604, 453255, 486420, 604340, 664774, 906510, 997161, 1329548, 1661935, 1813020, 1994322, 3323870, 3988644, 4985805, 6647740, 9971610, 19943220]

約数ペア:

[(1, 19943220), (2, 9971610), (3, 6647740), (4, 4985805), (5, 3988644), (6, 3323870), (10, 1994322), (11, 1813020), (12, 1661935), (15, 1329548), (20, 997161), (22, 906510), (30, 664774), (33, 604340), (41, 486420), (44, 453255), (55, 362604), (60, 332387), (66, 302170), (67, 297660), (82, 243210), (110, 181302), (121, 164820), (123, 162140), (132, 151085), (134, 148830), (164, 121605), (165, 120868), (201, 99220), (205, 97284), (220, 90651), (242, 82410), (246, 81070), (268, 74415), (330, 60434), (335, 59532), (363, 54940), (402, 49610), (410, 48642), (451, 44220), (484, 41205), (492, 40535), (605, 32964), (615, 32428), (660, 30217), (670, 29766), (726, 27470), (737, 27060), (804, 24805), (820, 24321), (902, 22110), (1005, 19844), (1210, 16482), (1230, 16214), (1340, 14883), (1353, 14740), (1452, 13735), (1474, 13530), (1804, 11055), (1815, 10988), (2010, 9922), (2211, 9020), (2255, 8844), (2420, 8241), (2460, 8107), (2706, 7370), (2747, 7260), (2948, 6765), (3630, 5494), (3685, 5412), (4020, 4961), (4422, 4510)]