20090165072

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{419}}^1\times {\mathrm{431}}^1$

素因数の和:1284

約数の個数: 80

約数和(自身を含む): 41509843200

約数和(自身を除く): 21419678128

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 409, 419, 431, 818, 838, 862, 1636, 1676, 1724, 3272, 3352, 3448, 6544, 6704, 6896, 6953, 7123, 7327, 13906, 14246, 14654, 27812, 28492, 29308, 55624, 56984, 58616, 111248, 113968, 117232, 171371, 176279, 180589, 342742, 352558, 361178, 685484, 705116, 722356, 1370968, 1410232, 1444712, 2741936, 2820464, 2889424, 2913307, 2996743, 3070013, 5826614, 5993486, 6140026, 11653228, 11986972, 12280052, 23306456, 23973944, 24560104, 46612912, 47947888, 49120208, 73860901, 147721802, 295443604, 590887208, 1181774416, 1255635317, 2511270634, 5022541268, 10045082536, 20090165072]

約数ペア:

[(1, 20090165072), (2, 10045082536), (4, 5022541268), (8, 2511270634), (16, 1255635317), (17, 1181774416), (34, 590887208), (68, 295443604), (136, 147721802), (272, 73860901), (409, 49120208), (419, 47947888), (431, 46612912), (818, 24560104), (838, 23973944), (862, 23306456), (1636, 12280052), (1676, 11986972), (1724, 11653228), (3272, 6140026), (3352, 5993486), (3448, 5826614), (6544, 3070013), (6704, 2996743), (6896, 2913307), (6953, 2889424), (7123, 2820464), (7327, 2741936), (13906, 1444712), (14246, 1410232), (14654, 1370968), (27812, 722356), (28492, 705116), (29308, 685484), (55624, 361178), (56984, 352558), (58616, 342742), (111248, 180589), (113968, 176279), (117232, 171371)]