31920760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{433}}^1$

素因数の和:560

約数の個数: 64

約数和(自身を含む): 76557600

約数和(自身を除く): 44636840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 97, 152, 190, 194, 380, 388, 433, 485, 760, 776, 866, 970, 1732, 1843, 1940, 2165, 3464, 3686, 3880, 4330, 7372, 8227, 8660, 9215, 14744, 16454, 17320, 18430, 32908, 36860, 41135, 42001, 65816, 73720, 82270, 84002, 164540, 168004, 210005, 329080, 336008, 420010, 798019, 840020, 1596038, 1680040, 3192076, 3990095, 6384152, 7980190, 15960380, 31920760]

約数ペア:

[(1, 31920760), (2, 15960380), (4, 7980190), (5, 6384152), (8, 3990095), (10, 3192076), (19, 1680040), (20, 1596038), (38, 840020), (40, 798019), (76, 420010), (95, 336008), (97, 329080), (152, 210005), (190, 168004), (194, 164540), (380, 84002), (388, 82270), (433, 73720), (485, 65816), (760, 42001), (776, 41135), (866, 36860), (970, 32908), (1732, 18430), (1843, 17320), (1940, 16454), (2165, 14744), (3464, 9215), (3686, 8660), (3880, 8227), (4330, 7372)]