178947080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:271

約数の個数: 128

約数和(自身を含む): 455051520

約数和(自身を除く): 276104440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 53, 65, 86, 104, 106, 130, 151, 172, 212, 215, 260, 265, 302, 344, 424, 430, 520, 530, 559, 604, 689, 755, 860, 1060, 1118, 1208, 1378, 1510, 1720, 1963, 2120, 2236, 2279, 2756, 2795, 3020, 3445, 3926, 4472, 4558, 5512, 5590, 6040, 6493, 6890, 7852, 8003, 9116, 9815, 11180, 11395, 12986, 13780, 15704, 16006, 18232, 19630, 22360, 22790, 25972, 27560, 29627, 32012, 32465, 39260, 40015, 45580, 51944, 59254, 64024, 64930, 78520, 80030, 84409, 91160, 104039, 118508, 129860, 148135, 160060, 168818, 208078, 237016, 259720, 296270, 320120, 337636, 344129, 416156, 422045, 520195, 592540, 675272, 688258, 832312, 844090, 1040390, 1185080, 1376516, 1688180, 1720645, 2080780, 2753032, 3376360, 3441290, 4161560, 4473677, 6882580, 8947354, 13765160, 17894708, 22368385, 35789416, 44736770, 89473540, 178947080]

約数ペア:

[(1, 178947080), (2, 89473540), (4, 44736770), (5, 35789416), (8, 22368385), (10, 17894708), (13, 13765160), (20, 8947354), (26, 6882580), (40, 4473677), (43, 4161560), (52, 3441290), (53, 3376360), (65, 2753032), (86, 2080780), (104, 1720645), (106, 1688180), (130, 1376516), (151, 1185080), (172, 1040390), (212, 844090), (215, 832312), (260, 688258), (265, 675272), (302, 592540), (344, 520195), (424, 422045), (430, 416156), (520, 344129), (530, 337636), (559, 320120), (604, 296270), (689, 259720), (755, 237016), (860, 208078), (1060, 168818), (1118, 160060), (1208, 148135), (1378, 129860), (1510, 118508), (1720, 104039), (1963, 91160), (2120, 84409), (2236, 80030), (2279, 78520), (2756, 64930), (2795, 64024), (3020, 59254), (3445, 51944), (3926, 45580), (4472, 40015), (4558, 39260), (5512, 32465), (5590, 32012), (6040, 29627), (6493, 27560), (6890, 25972), (7852, 22790), (8003, 22360), (9116, 19630), (9815, 18232), (11180, 16006), (11395, 15704), (12986, 13780)]