154520320

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1979}}^1$

素因数の和:2061

約数の個数: 72

約数和(自身を含む): 376382160

約数和(自身を除く): 221861840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 488, 610, 640, 976, 1220, 1280, 1952, 1979, 2440, 3904, 3958, 4880, 7808, 7916, 9760, 9895, 15616, 15832, 19520, 19790, 31664, 39040, 39580, 63328, 78080, 79160, 120719, 126656, 158320, 241438, 253312, 316640, 482876, 506624, 603595, 633280, 965752, 1207190, 1266560, 1931504, 2414380, 2533120, 3863008, 4828760, 7726016, 9657520, 15452032, 19315040, 30904064, 38630080, 77260160, 154520320]

約数ペア:

[(1, 154520320), (2, 77260160), (4, 38630080), (5, 30904064), (8, 19315040), (10, 15452032), (16, 9657520), (20, 7726016), (32, 4828760), (40, 3863008), (61, 2533120), (64, 2414380), (80, 1931504), (122, 1266560), (128, 1207190), (160, 965752), (244, 633280), (256, 603595), (305, 506624), (320, 482876), (488, 316640), (610, 253312), (640, 241438), (976, 158320), (1220, 126656), (1280, 120719), (1952, 79160), (1979, 78080), (2440, 63328), (3904, 39580), (3958, 39040), (4880, 31664), (7808, 19790), (7916, 19520), (9760, 15832), (9895, 15616)]