149788780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:263

約数の個数: 96

約数和(自身を含む): 345945600

約数和(自身を除く): 196156820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 89, 95, 103, 172, 178, 190, 206, 215, 356, 380, 412, 430, 445, 515, 817, 860, 890, 1030, 1634, 1691, 1780, 1957, 2060, 3268, 3382, 3827, 3914, 4085, 4429, 6764, 7654, 7828, 8170, 8455, 8858, 9167, 9785, 15308, 16340, 16910, 17716, 18334, 19135, 19570, 22145, 33820, 36668, 38270, 39140, 44290, 45835, 72713, 76540, 84151, 88580, 91670, 145426, 168302, 174173, 183340, 290852, 336604, 348346, 363565, 394181, 420755, 696692, 727130, 788362, 841510, 870865, 1454260, 1576724, 1683020, 1741730, 1970905, 3483460, 3941810, 7489439, 7883620, 14978878, 29957756, 37447195, 74894390, 149788780]

約数ペア:

[(1, 149788780), (2, 74894390), (4, 37447195), (5, 29957756), (10, 14978878), (19, 7883620), (20, 7489439), (38, 3941810), (43, 3483460), (76, 1970905), (86, 1741730), (89, 1683020), (95, 1576724), (103, 1454260), (172, 870865), (178, 841510), (190, 788362), (206, 727130), (215, 696692), (356, 420755), (380, 394181), (412, 363565), (430, 348346), (445, 336604), (515, 290852), (817, 183340), (860, 174173), (890, 168302), (1030, 145426), (1634, 91670), (1691, 88580), (1780, 84151), (1957, 76540), (2060, 72713), (3268, 45835), (3382, 44290), (3827, 39140), (3914, 38270), (4085, 36668), (4429, 33820), (6764, 22145), (7654, 19570), (7828, 19135), (8170, 18334), (8455, 17716), (8858, 16910), (9167, 16340), (9785, 15308)]