65389640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{887}}^1$

素因数の和:1014

約数の個数: 64

約数和(自身を含む): 156643200

約数和(自身を除く): 91253560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 97, 152, 190, 194, 380, 388, 485, 760, 776, 887, 970, 1774, 1843, 1940, 3548, 3686, 3880, 4435, 7096, 7372, 8870, 9215, 14744, 16853, 17740, 18430, 33706, 35480, 36860, 67412, 73720, 84265, 86039, 134824, 168530, 172078, 337060, 344156, 430195, 674120, 688312, 860390, 1634741, 1720780, 3269482, 3441560, 6538964, 8173705, 13077928, 16347410, 32694820, 65389640]

約数ペア:

[(1, 65389640), (2, 32694820), (4, 16347410), (5, 13077928), (8, 8173705), (10, 6538964), (19, 3441560), (20, 3269482), (38, 1720780), (40, 1634741), (76, 860390), (95, 688312), (97, 674120), (152, 430195), (190, 344156), (194, 337060), (380, 172078), (388, 168530), (485, 134824), (760, 86039), (776, 84265), (887, 73720), (970, 67412), (1774, 36860), (1843, 35480), (1940, 33706), (3548, 18430), (3686, 17740), (3880, 16853), (4435, 14744), (7096, 9215), (7372, 8870)]