28105422080

素因数分解:

$2^8\times 5^1\times {\mathrm{3557}}^1\times {\mathrm{6173}}^1$

素因数の和:9751

約数の個数: 72

約数和(自身を含む): 67351104072

約数和(自身を除く): 39245681992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 3557, 6173, 7114, 12346, 14228, 17785, 24692, 28456, 30865, 35570, 49384, 56912, 61730, 71140, 98768, 113824, 123460, 142280, 197536, 227648, 246920, 284560, 395072, 455296, 493840, 569120, 790144, 910592, 987680, 1138240, 1580288, 1975360, 2276480, 3950720, 4552960, 7901440, 21957361, 43914722, 87829444, 109786805, 175658888, 219573610, 351317776, 439147220, 702635552, 878294440, 1405271104, 1756588880, 2810542208, 3513177760, 5621084416, 7026355520, 14052711040, 28105422080]

約数ペア:

[(1, 28105422080), (2, 14052711040), (4, 7026355520), (5, 5621084416), (8, 3513177760), (10, 2810542208), (16, 1756588880), (20, 1405271104), (32, 878294440), (40, 702635552), (64, 439147220), (80, 351317776), (128, 219573610), (160, 175658888), (256, 109786805), (320, 87829444), (640, 43914722), (1280, 21957361), (3557, 7901440), (6173, 4552960), (7114, 3950720), (12346, 2276480), (14228, 1975360), (17785, 1580288), (24692, 1138240), (28456, 987680), (30865, 910592), (35570, 790144), (49384, 569120), (56912, 493840), (61730, 455296), (71140, 395072), (98768, 284560), (113824, 246920), (123460, 227648), (142280, 197536)]