203431280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4549}}^1$

素因数の和:4618

約数の個数: 80

約数和(自身を含む): 521320800

約数和(自身を除く): 317889520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 208, 215, 260, 344, 430, 520, 559, 688, 860, 1040, 1118, 1720, 2236, 2795, 3440, 4472, 4549, 5590, 8944, 9098, 11180, 18196, 22360, 22745, 36392, 44720, 45490, 59137, 72784, 90980, 118274, 181960, 195607, 236548, 295685, 363920, 391214, 473096, 591370, 782428, 946192, 978035, 1182740, 1564856, 1956070, 2365480, 2542891, 3129712, 3912140, 4730960, 5085782, 7824280, 10171564, 12714455, 15648560, 20343128, 25428910, 40686256, 50857820, 101715640, 203431280]

約数ペア:

[(1, 203431280), (2, 101715640), (4, 50857820), (5, 40686256), (8, 25428910), (10, 20343128), (13, 15648560), (16, 12714455), (20, 10171564), (26, 7824280), (40, 5085782), (43, 4730960), (52, 3912140), (65, 3129712), (80, 2542891), (86, 2365480), (104, 1956070), (130, 1564856), (172, 1182740), (208, 978035), (215, 946192), (260, 782428), (344, 591370), (430, 473096), (520, 391214), (559, 363920), (688, 295685), (860, 236548), (1040, 195607), (1118, 181960), (1720, 118274), (2236, 90980), (2795, 72784), (3440, 59137), (4472, 45490), (4549, 44720), (5590, 36392), (8944, 22745), (9098, 22360), (11180, 18196)]