1645624520

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{677}}^1\times {\mathrm{907}}^1$

素因数の和:1662

約数の個数: 64

約数和(自身を含む): 3767618880

約数和(自身を除く): 2121994360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 677, 907, 1340, 1354, 1814, 2680, 2708, 3385, 3628, 4535, 5416, 6770, 7256, 9070, 13540, 18140, 27080, 36280, 45359, 60769, 90718, 121538, 181436, 226795, 243076, 303845, 362872, 453590, 486152, 607690, 614039, 907180, 1215380, 1228078, 1814360, 2430760, 2456156, 3070195, 4912312, 6140390, 12280780, 24561560, 41140613, 82281226, 164562452, 205703065, 329124904, 411406130, 822812260, 1645624520]

約数ペア:

[(1, 1645624520), (2, 822812260), (4, 411406130), (5, 329124904), (8, 205703065), (10, 164562452), (20, 82281226), (40, 41140613), (67, 24561560), (134, 12280780), (268, 6140390), (335, 4912312), (536, 3070195), (670, 2456156), (677, 2430760), (907, 1814360), (1340, 1228078), (1354, 1215380), (1814, 907180), (2680, 614039), (2708, 607690), (3385, 486152), (3628, 453590), (4535, 362872), (5416, 303845), (6770, 243076), (7256, 226795), (9070, 181436), (13540, 121538), (18140, 90718), (27080, 60769), (36280, 45359)]