721809738

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:369

約数の個数: 128

約数和(自身を含む): 1788272640

約数和(自身を除く): 1066462902

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 47, 54, 78, 94, 117, 131, 141, 167, 234, 262, 282, 334, 351, 393, 423, 501, 611, 702, 786, 846, 1002, 1179, 1222, 1269, 1503, 1703, 1833, 2171, 2358, 2538, 3006, 3406, 3537, 3666, 4342, 4509, 5109, 5499, 6157, 6513, 7074, 7849, 9018, 10218, 10998, 12314, 13026, 15327, 15698, 16497, 18471, 19539, 21877, 23547, 30654, 32994, 36942, 39078, 43754, 45981, 47094, 55413, 58617, 65631, 70641, 80041, 91962, 102037, 110826, 117234, 131262, 141282, 160082, 166239, 196893, 204074, 211923, 240123, 284401, 306111, 332478, 393786, 423846, 480246, 568802, 590679, 612222, 720369, 853203, 918333, 1028219, 1181358, 1440738, 1706406, 1836666, 2056438, 2161107, 2559609, 2754999, 3084657, 4322214, 5119218, 5509998, 6169314, 7678827, 9253971, 13366847, 15357654, 18507942, 26733694, 27761913, 40100541, 55523826, 80201082, 120301623, 240603246, 360904869, 721809738]

約数ペア:

[(1, 721809738), (2, 360904869), (3, 240603246), (6, 120301623), (9, 80201082), (13, 55523826), (18, 40100541), (26, 27761913), (27, 26733694), (39, 18507942), (47, 15357654), (54, 13366847), (78, 9253971), (94, 7678827), (117, 6169314), (131, 5509998), (141, 5119218), (167, 4322214), (234, 3084657), (262, 2754999), (282, 2559609), (334, 2161107), (351, 2056438), (393, 1836666), (423, 1706406), (501, 1440738), (611, 1181358), (702, 1028219), (786, 918333), (846, 853203), (1002, 720369), (1179, 612222), (1222, 590679), (1269, 568802), (1503, 480246), (1703, 423846), (1833, 393786), (2171, 332478), (2358, 306111), (2538, 284401), (3006, 240123), (3406, 211923), (3537, 204074), (3666, 196893), (4342, 166239), (4509, 160082), (5109, 141282), (5499, 131262), (6157, 117234), (6513, 110826), (7074, 102037), (7849, 91962), (9018, 80041), (10218, 70641), (10998, 65631), (12314, 58617), (13026, 55413), (15327, 47094), (15698, 45981), (16497, 43754), (18471, 39078), (19539, 36942), (21877, 32994), (23547, 30654)]