243085880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:229

約数の個数: 128

約数和(自身を含む): 596090880

約数和(自身を除く): 353005000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 47, 62, 86, 94, 97, 124, 155, 172, 188, 194, 215, 235, 248, 310, 344, 376, 388, 430, 470, 485, 620, 776, 860, 940, 970, 1240, 1333, 1457, 1720, 1880, 1940, 2021, 2666, 2914, 3007, 3880, 4042, 4171, 4559, 5332, 5828, 6014, 6665, 7285, 8084, 8342, 9118, 10105, 10664, 11656, 12028, 13330, 14570, 15035, 16168, 16684, 18236, 20210, 20855, 22795, 24056, 26660, 29140, 30070, 33368, 36472, 40420, 41710, 45590, 53320, 58280, 60140, 62651, 80840, 83420, 91180, 120280, 125302, 129301, 141329, 166840, 182360, 196037, 250604, 258602, 282658, 313255, 392074, 501208, 517204, 565316, 626510, 646505, 706645, 784148, 980185, 1034408, 1130632, 1253020, 1293010, 1413290, 1568296, 1960370, 2506040, 2586020, 2826580, 3920740, 5172040, 5653160, 6077147, 7841480, 12154294, 24308588, 30385735, 48617176, 60771470, 121542940, 243085880]

約数ペア:

[(1, 243085880), (2, 121542940), (4, 60771470), (5, 48617176), (8, 30385735), (10, 24308588), (20, 12154294), (31, 7841480), (40, 6077147), (43, 5653160), (47, 5172040), (62, 3920740), (86, 2826580), (94, 2586020), (97, 2506040), (124, 1960370), (155, 1568296), (172, 1413290), (188, 1293010), (194, 1253020), (215, 1130632), (235, 1034408), (248, 980185), (310, 784148), (344, 706645), (376, 646505), (388, 626510), (430, 565316), (470, 517204), (485, 501208), (620, 392074), (776, 313255), (860, 282658), (940, 258602), (970, 250604), (1240, 196037), (1333, 182360), (1457, 166840), (1720, 141329), (1880, 129301), (1940, 125302), (2021, 120280), (2666, 91180), (2914, 83420), (3007, 80840), (3880, 62651), (4042, 60140), (4171, 58280), (4559, 53320), (5332, 45590), (5828, 41710), (6014, 40420), (6665, 36472), (7285, 33368), (8084, 30070), (8342, 29140), (9118, 26660), (10105, 24056), (10664, 22795), (11656, 20855), (12028, 20210), (13330, 18236), (14570, 16684), (15035, 16168)]