720281628

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:408

約数の個数: 144

約数和(自身を含む): 2037934080

約数和(自身を除く): 1317652452

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 89, 99, 107, 132, 178, 191, 198, 214, 267, 321, 356, 382, 396, 428, 534, 573, 642, 764, 801, 963, 979, 1068, 1146, 1177, 1284, 1602, 1719, 1926, 1958, 2101, 2292, 2354, 2937, 3204, 3438, 3531, 3852, 3916, 4202, 4708, 5874, 6303, 6876, 7062, 8404, 8811, 9523, 10593, 11748, 12606, 14124, 16999, 17622, 18909, 19046, 20437, 21186, 25212, 28569, 33998, 35244, 37818, 38092, 40874, 42372, 50997, 57138, 61311, 67996, 75636, 81748, 85707, 101994, 104753, 114276, 122622, 152991, 171414, 183933, 186989, 203988, 209506, 224807, 245244, 305982, 314259, 342828, 367866, 373978, 419012, 449614, 560967, 611964, 628518, 674421, 735732, 747956, 899228, 942777, 1121934, 1257036, 1348842, 1682901, 1818893, 1885554, 2023263, 2243868, 2697684, 3365802, 3637786, 3771108, 4046526, 5456679, 6731604, 7275572, 8093052, 10913358, 16370037, 20007823, 21826716, 32740074, 40015646, 60023469, 65480148, 80031292, 120046938, 180070407, 240093876, 360140814, 720281628]

約数ペア:

[(1, 720281628), (2, 360140814), (3, 240093876), (4, 180070407), (6, 120046938), (9, 80031292), (11, 65480148), (12, 60023469), (18, 40015646), (22, 32740074), (33, 21826716), (36, 20007823), (44, 16370037), (66, 10913358), (89, 8093052), (99, 7275572), (107, 6731604), (132, 5456679), (178, 4046526), (191, 3771108), (198, 3637786), (214, 3365802), (267, 2697684), (321, 2243868), (356, 2023263), (382, 1885554), (396, 1818893), (428, 1682901), (534, 1348842), (573, 1257036), (642, 1121934), (764, 942777), (801, 899228), (963, 747956), (979, 735732), (1068, 674421), (1146, 628518), (1177, 611964), (1284, 560967), (1602, 449614), (1719, 419012), (1926, 373978), (1958, 367866), (2101, 342828), (2292, 314259), (2354, 305982), (2937, 245244), (3204, 224807), (3438, 209506), (3531, 203988), (3852, 186989), (3916, 183933), (4202, 171414), (4708, 152991), (5874, 122622), (6303, 114276), (6876, 104753), (7062, 101994), (8404, 85707), (8811, 81748), (9523, 75636), (10593, 67996), (11748, 61311), (12606, 57138), (14124, 50997), (16999, 42372), (17622, 40874), (18909, 38092), (19046, 37818), (20437, 35244), (21186, 33998), (25212, 28569)]