15360920

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 36197280

約数和(自身を除く): 20836360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 97, 107, 148, 185, 194, 214, 296, 370, 388, 428, 485, 535, 740, 776, 856, 970, 1070, 1480, 1940, 2140, 3589, 3880, 3959, 4280, 7178, 7918, 10379, 14356, 15836, 17945, 19795, 20758, 28712, 31672, 35890, 39590, 41516, 51895, 71780, 79180, 83032, 103790, 143560, 158360, 207580, 384023, 415160, 768046, 1536092, 1920115, 3072184, 3840230, 7680460, 15360920]

約数ペア:

[(1, 15360920), (2, 7680460), (4, 3840230), (5, 3072184), (8, 1920115), (10, 1536092), (20, 768046), (37, 415160), (40, 384023), (74, 207580), (97, 158360), (107, 143560), (148, 103790), (185, 83032), (194, 79180), (214, 71780), (296, 51895), (370, 41516), (388, 39590), (428, 35890), (485, 31672), (535, 28712), (740, 20758), (776, 19795), (856, 17945), (970, 15836), (1070, 14356), (1480, 10379), (1940, 7918), (2140, 7178), (3589, 4280), (3880, 3959)]