644653252803

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1\times {\mathrm{449}}^1\times {\mathrm{2819}}^1$

素因数の和:3664

約数の個数: 64

約数和(自身を含む): 1000581120000

約数和(自身を除く): 355927867197

約数列:

[1, 3, 7, 21, 79, 237, 307, 449, 553, 921, 1347, 1659, 2149, 2819, 3143, 6447, 8457, 9429, 19733, 24253, 35471, 59199, 72759, 106413, 137843, 169771, 222701, 248297, 413529, 509313, 668103, 744891, 865433, 964901, 1265731, 1558907, 2596299, 2894703, 3797193, 4676721, 6058031, 8860117, 10889597, 18174093, 26580351, 32668791, 68369207, 76227179, 99992749, 205107621, 228681537, 299978247, 388579417, 478584449, 699949243, 1165738251, 1435753347, 2099847729, 2720055919, 8160167757, 30697773943, 92093321829, 214884417601, 644653252803]

約数ペア:

[(1, 644653252803), (3, 214884417601), (7, 92093321829), (21, 30697773943), (79, 8160167757), (237, 2720055919), (307, 2099847729), (449, 1435753347), (553, 1165738251), (921, 699949243), (1347, 478584449), (1659, 388579417), (2149, 299978247), (2819, 228681537), (3143, 205107621), (6447, 99992749), (8457, 76227179), (9429, 68369207), (19733, 32668791), (24253, 26580351), (35471, 18174093), (59199, 10889597), (72759, 8860117), (106413, 6058031), (137843, 4676721), (169771, 3797193), (222701, 2894703), (248297, 2596299), (413529, 1558907), (509313, 1265731), (668103, 964901), (744891, 865433)]