620433144

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{7687}}^1$

素因数の和:7777

約数の個数: 96

約数和(自身を含む): 1798992000

約数和(自身を除く): 1178558856

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 59, 72, 76, 114, 118, 152, 171, 177, 228, 236, 342, 354, 456, 472, 531, 684, 708, 1062, 1121, 1368, 1416, 2124, 2242, 3363, 4248, 4484, 6726, 7687, 8968, 10089, 13452, 15374, 20178, 23061, 26904, 30748, 40356, 46122, 61496, 69183, 80712, 92244, 138366, 146053, 184488, 276732, 292106, 438159, 453533, 553464, 584212, 876318, 907066, 1168424, 1314477, 1360599, 1752636, 1814132, 2628954, 2721198, 3505272, 3628264, 4081797, 5257908, 5442396, 8163594, 8617127, 10515816, 10884792, 16327188, 17234254, 25851381, 32654376, 34468508, 51702762, 68937016, 77554143, 103405524, 155108286, 206811048, 310216572, 620433144]

約数ペア:

[(1, 620433144), (2, 310216572), (3, 206811048), (4, 155108286), (6, 103405524), (8, 77554143), (9, 68937016), (12, 51702762), (18, 34468508), (19, 32654376), (24, 25851381), (36, 17234254), (38, 16327188), (57, 10884792), (59, 10515816), (72, 8617127), (76, 8163594), (114, 5442396), (118, 5257908), (152, 4081797), (171, 3628264), (177, 3505272), (228, 2721198), (236, 2628954), (342, 1814132), (354, 1752636), (456, 1360599), (472, 1314477), (531, 1168424), (684, 907066), (708, 876318), (1062, 584212), (1121, 553464), (1368, 453533), (1416, 438159), (2124, 292106), (2242, 276732), (3363, 184488), (4248, 146053), (4484, 138366), (6726, 92244), (7687, 80712), (8968, 69183), (10089, 61496), (13452, 46122), (15374, 40356), (20178, 30748), (23061, 26904)]