258187960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{383}}^1\times {\mathrm{887}}^1$

素因数の和:1300

約数の個数: 64

約数和(自身を含む): 613785600

約数和(自身を除く): 355597640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 383, 760, 766, 887, 1532, 1774, 1915, 3064, 3548, 3830, 4435, 7096, 7277, 7660, 8870, 14554, 15320, 16853, 17740, 29108, 33706, 35480, 36385, 58216, 67412, 72770, 84265, 134824, 145540, 168530, 291080, 337060, 339721, 674120, 679442, 1358884, 1698605, 2717768, 3397210, 6454699, 6794420, 12909398, 13588840, 25818796, 32273495, 51637592, 64546990, 129093980, 258187960]

約数ペア:

[(1, 258187960), (2, 129093980), (4, 64546990), (5, 51637592), (8, 32273495), (10, 25818796), (19, 13588840), (20, 12909398), (38, 6794420), (40, 6454699), (76, 3397210), (95, 2717768), (152, 1698605), (190, 1358884), (380, 679442), (383, 674120), (760, 339721), (766, 337060), (887, 291080), (1532, 168530), (1774, 145540), (1915, 134824), (3064, 84265), (3548, 72770), (3830, 67412), (4435, 58216), (7096, 36385), (7277, 35480), (7660, 33706), (8870, 29108), (14554, 17740), (15320, 16853)]